Bing wallpaper for mobile

Hottest Latest
Veterans Day
Veterans Day
Freedom is not free, and nobody understands that better than veterans. Today, America honors its military men and women for their service. The holiday originally celebrated a temporary halt in fighting between Allied nations and Germany during World War I—the official end of the war came the following year in 1919. Armistice Day, as it was later named, commemorated this respite, and it became a federal holiday in 1938. A few years later, America fought in World War II, and later, the Korean War. As a result, Congress amended the holiday in 1954, exchanging the word "Armistice" with "Veterans" to include veterans of all the country"s wars.Desktop Version
International Surfing Day
International Surfing Day
Today, everybody"s hitting the waves for International Surfing Day! This event is about celebrating surfing while also drawing attention to the importance of protecting ocean environments to keep their waters pristine for wildlife and surfers alike. Surfing has a long history; around 5,000 years ago in Peru, people used reed watercraft to surf the waves when they were out fishing. It was in pre-colonial Hawaii, however, that modern surfing was born. Here, people started to stand on their boards and to surf for fun. Historians believe that surfing made its way to the US in 1885, when three teenage Hawaiian princes surfed on redwood boards while on a break from boarding school in California.Desktop Version
Celebrating Pi Day
Celebrating Pi Day
Calculating the ratio of a circle"s circumference to its diameter is as easy as pi. Today is Pi Day, an event that celebrates this mathematical constant. This date was chosen because 3, 1, and 4 are the first three significant figures of pi (π) when it is written out. Pi is an irrational number, which means that it can"t be written as a fraction. When written out, its decimal representation goes on infinitely without repeating. The oldest attempts to calculate pi date back to ancient Babylon and Egypt, around 1900 BCE.Desktop Version
Collared aracari in Costa Rica
Collared aracari in Costa Rica
Black and yellow plumage, bright eyes, and an oversized bill—meet the collared aracari, a fascinating tropical bird. Gracing the forests from Mexico through Costa Rica, where today"s image was taken, to Colombia and Venezuela, this toucan gets its name from the red marking on the back of the neck. These birds circle through the air in groups of up to 15, and at night, snuggle together in tree cavities. Their song is as unique as their look—a high squeaky note that sounds like "seek," sometimes a "purr" or even a raspy "grhhrr." Although deforestation and hunting pose threats to these birds, they are not endangered. For now, collared aracaris remain a captivating sight, a splash of color, and a burst of life amid the sprawling branches.Desktop Version
Happy St. Patricks Day!
Happy St. Patricks Day!
St. Patrick"s Day, celebrated on March 17, honors Ireland"s patron saint and national apostle, Saint Patrick—a fifth-century missionary. A national holiday in Ireland, the festivity is marked by a range of cultural events, parades, and traditional music and dance enjoyed across the globe. Interestingly, the first St. Patrick"s Day parade wasn"t held in Ireland but in the US. The earliest celebration was organized by Irish vicar Ricardo Artur in St. Augustine, Florida, in 1601.Desktop Version
Fibonacci Day
Fibonacci Day
On Fibonacci Day, mathematicians and scientists honor one of their own: Leonardo Bonacci, better known as Fibonacci. The medieval mathematician popularized the Hindu-Arabic numeral system, with its use of zero, decimal points, and 10 numbers instead of the ponderous Roman numeral system. He"s most famous, however, for his sequence of numbers: 0, 1, 1, 2, 3, 5, 8... By adding the first two numbers, you arrive at the third, and adding the previous two numbers, you arrive at the next number, and so on. Disregarding the zero, the first four numbers correspond to today"s date, 11/23.Desktop Version
Talampaya National Park, Argentina
Talampaya National Park, Argentina
As Argentina celebrates Independence Day, Talampaya National Park invites us to venture into the country"s ancient heart. Here, towering red rock formations reach skyward, and cliffs and caves feature petroglyphs created by the Ciénaga, Diaguita, and other Indigenous cultures more than 1,000 years ago. This 830-square-mile park in La Rioja province is also home to some of the oldest dinosaur remains ever found. Moreover, nature"s beauty is shown in the local flora, like xeric shrubs and cactus, and fauna. Guanacos, hares, and foxes roam free, while condors, white-throated cacholotes, and sandy gallitos grace the skies above this UNESCO World Heritage Site.Desktop Version
World Bicycle Day
World Bicycle Day
If there"s one place that brings the cycling spirit to life, it"s the Netherlands. For World Bicycle Day, today"s image captures bicycles lined up on a bridge in the Dutch city of Utrecht. More than half the journeys around the city happen on bikes, surpassing cars and other modes of travel. Nearly everyone lives within 15 minutes of essentials—and over 90% of residents can reach key places in just 10 minutes. This wasn"t always the case. It was only in the 1970s, sparked by an oil crisis, rising car-related issues, and strong social movements, that the Netherlands started prioritizing bikes over cars. Since then, cities have embraced bike-friendly streets, dedicated lanes, and traffic lights for cyclists. And thanks to the famously flat landscape, cycling here feels as natural as walking.Desktop Version
Happy Cousins Day!
Happy Cousins Day!
Remember the cousin who convinced you to climb the tallest tree or the one who helped you sneak an extra slice of cake at the family reunion? Today is a good time to appreciate those childhood partners in crime who made growing up way more exciting. Cousins often land somewhere between sibling and friend, getting into trouble with you, sharing inside jokes, and showing up at every family gathering. In nature, few creatures mirror that kind of togetherness better than the ashy woodswallow, pictured here. Native to South Asia, these birds are rarely seen alone. They gather in tight groups on bare branches or perch atop high places like powerlines. From there, they launch into graceful flights—flapping and gliding as they snatch insects midair.Desktop Version
Seceda, Dolomites, South Tyrol, Italy
Seceda, Dolomites, South Tyrol, Italy
Italy"s Dolomites don"t just tower; they enchant, turning every trail into a story. Fondly known as the "Pale Mountains," the Dolomites derive their name from dolomite—a carbonate mineral. Set in the northern Italian Alps, the range spans over 345,000 acres and boasts 18 soaring peaks that rise above 9,500 feet. These mountains feature sheer cliffs, lofty walls, and a maze of narrow, winding valleys.Desktop Version
World Water Day
World Water Day
March 22 is World Water Day, a United Nations initiative highlighting the importance of fresh water and its conservation. This day raises awareness about the global water crisis and promotes actions to ensure clean water for all. Fresh water is vital—not just for drinking, but for ecosystems, agriculture, and cultural heritage.Desktop Version
Vineyards in the Mosel Valley, Rhineland-Palatinate, Germany
Vineyards in the Mosel Valley, Rhineland-Palatinate, Germany
Welcome to the Palatinate, a wine lover"s dream come true. This wine-growing region in western Germany has rolling hills, fertile soils, and a warm climate, allowing the cultivation of a diverse variety of grapes. While riesling reigns supreme, other notable varieties include chardonnay, sauvignon blanc, pinot blanc, Müller-Thurgau, and Dornfelder. The Palatinate is the largest red wine-producing region in the country, with over 40% of the vineyards devoted to it.Desktop Version
World Octopus Day
World Octopus Day
What exactly are we looking at here? The veined octopus, also known as the coconut octopus, is one of the smartest animals on Earth, building shelters from seashells and coconut shells. If you peek inside, you may spot those telltale suction cups that cover the creature"s eight limbs. These arms contain clusters of neurons, which make them particularly sensitive, and each arm can be used separately to perform complex tasks. Octopuses can also match the color—sometimes even the texture—of their environment, making them even more difficult to spot. There"s lots more to learn about these fascinating animals, and World Octopus Day is a great day to do it. You could always start with the Academy Award-winning documentary "My Octopus Teacher."Desktop Version
Earth Day
Earth Day
Today is Earth Day—a day dedicated to celebrating the planet we call home and raising awareness of environmental problems. The seeds of this day were planted back in 1969 when Senator Gaylord Nelson of Wisconsin witnessed events like the Cuyahoga River catching fire and the Santa Barbara oil spill and decided that the world needed an environmental initiative. A year later, the first Earth Day event was held. Now, it has grown into an annual event with more than a billion people in over 193 countries taking part.Desktop Version
International Literacy Day
International Literacy Day
"Literacy is a bridge from misery to hope." These words by former secretary-general of the United Nations Kofi Annan capture the essence of International Literacy Day, celebrated every September 8. Established by UNESCO in 1966, this observance not only celebrates those who can read but also highlights the ongoing battle against illiteracy. With approximately 775 million people worldwide still lacking basic literacy, this day resonates powerfully within the hallowed walls of the Stockholm Public Library in Sweden, or "Stadsbiblioteket" as it is known to locals, featured in today"s image.Desktop Version
International Day for Biosphere Reserves
International Day for Biosphere Reserves
Today is the International Day for Biosphere Reserves. Biosphere reserves may sound like a mouthful, but they"re essentially nature"s sweet spots— biodiverse places that are home to a huge variety of life. These reserves, recognized by UNESCO, keep ecosystems healthy, protect endangered species, and help regulate climate through forests, wetlands, and other crucial habitats. There are 759 biosphere reserves across 136 countries. From the lush greenery of the Sundarbans in India to the vast expanses of the Great Sandy Biosphere Reserve in Australia, each reserve is unique.Desktop Version
Apple trees in spring, Germany
Apple trees in spring, Germany
In this picturesque orchard, spring heralds the blossoming of apple trees. As the chill in the air starts to fade, delicate apple blossoms unfurl, releasing a sweet fragrance that permeates the countryside. This marks the beginning of a process that culminates in the harvest of one of the world"s most beloved fruits. Known for their crisp texture and sweet-tart flavor, apples belong to the Rosaceae family. These fruits come in a variety of colors, from vibrant reds to golden yellows and bright greens. Each type boasts its unique flavor profile, from the tangy Granny Smith to the sweetness of Fuji. These fruits are rich in dietary fiber, antioxidants, and essential vitamins like vitamin C and vitamin K, promoting overall health and well-being. Whether you like them fresh, baked in your favorite desserts, or pressed into cider, apples are a classic culinary delight.Desktop Version
Oxbow Bend on the Snake River, Grand Teton National Park, Wyoming
Oxbow Bend on the Snake River, Grand Teton National Park, Wyoming
Beyond water, rivers carry life, history, and stories. They are nature"s ever-moving contribution to our landscapes, flowing through lands and across time. One such gem is the Snake River, which winds through Grand Teton National Park in Wyoming. A particularly stunning spot along this river is Oxbow Bend—featured in today"s image—where calm waters reflect the towering Teton Range, and wildlife such as moose and bald eagles thrive. Here, water flows freely, unbound by concrete or commerce, protected by the Wild and Scenic Rivers Act, signed on this day in 1968.Desktop Version
International Archaeology Day
International Archaeology Day
Today, dig deep and unearth your inner Indiana Jones or Lara Croft on International Archaeology Day. The event celebrates archaeology"s benefits for society, and includes exhibits and hands-on excavations, some of which run throughout the month. Many US national and state parks, historic landmarks, and local museums also hold events.Desktop Version
Indigenous Peoples Day
Indigenous Peoples Day
Our homepage today celebrates Indigenous Peoples" Day. In the US, the second Monday in October is dedicated to the enduring cultures that have shaped the nation. Among them are the Fremont people, who lived in and around what is now Utah, for more than 1,000 years up to 1300 CE. This broad group of communities left a lasting mark on their region with their distinctive petroglyphs, a form of ancient art chipped or carved into rock. Today, many Americans participate in Indigenous Day celebrations such as art exhibitions, traditional music, and storytelling. Locations such as Dinosaur National Monument, Fremont Indian State Park, and McKee Spring provide insights into the history of this ancient culture that lived here for centuries.Desktop Version
Ides of March
Ides of March
As Shakespeare wrote in his play "Julius Caesar," "Friends, Romans, countrymen, lend me your ears." Today is the Ides of March, a day steeped in Roman history and tradition. The term "Ides" referred to the midpoint of the month in the Roman calendar, often marking the full moon. It was a time of celebration, with festivals and public gatherings. However, in 44 BCE, the Ides of March became synonymous with political upheaval, betrayal, and an event that would trigger the fall of the Roman Republic. On that fateful day, Julius Caesar, Rome"s powerful dictator, was assassinated by a group of senators. The conspirators, including his close ally Brutus, believed they were saving the Republic from Caesar"s growing authority. Caesar was attacked near the Theater of Pompey, but the tension of that moment echoed through the Roman Forum—the beating heart of Rome"s political and social life.Desktop Version
Gunnerside, Yorkshire Dales National Park, England
Gunnerside, Yorkshire Dales National Park, England
In Yorkshire Dales National Park, the ancient village of Gunnerside is brimming with English charm and history. Picture yourself strolling through its narrow lanes, surrounded by rolling hills, lush pastures, and stone cottages, with the roar of the Swale River your only soundtrack. Designated in 1954, the national park is spread across 841 square miles, and there are over 1,000 farms in this area. One of the area"s most distinctive features are its dry stone walls; built without any kind of mortar, they can last hundreds of years. There are thought to be over 5,000 miles of these walls in the Dales.Desktop Version
Grandparents Day
Grandparents Day
Have you called your nana, abuela, pop-pop or lolo lately? No matter what you call them, there"s no better time to pick up the phone than Grandparents" Day, held on the Sunday after Labor Day. Grandparents play a special role in our lives, helping to raise new generations, passing down family history and sharing the wisdom of their experience. Wisdom is not always indicated by a thick Wilford-Brimley-esque mustache, but whiskers do lend a certain esteemed quality. Perhaps that"s why these Atlantic walruses look like they"re about to tell you why they voted for Hubert Humphrey.Desktop Version
Katahdin Woods and Waters National Monument anniversary
Katahdin Woods and Waters National Monument anniversary
Welcome to Katahdin, where dense woodlands and pristine waterways stretch out as far as the eye can see. Covering nearly 87,500 acres, this new national monument was established eight years ago today. Maine"s logging industry was a big part of this region for over a hundred years but declined toward the end of the 19th century. Efforts to preserve its landscape were spearheaded by philanthropist Roxanne Quimby. She started buying land near Baxter State Park in 2001 and donated it to the federal government in 2016, ensuring its preservation for future generations.Desktop Version
International Sloth Day
International Sloth Day
The world"s slowest mammal takes the spotlight today on International Sloth Day. Celebrated on October 20, it highlights their lives, conservation efforts, and the threats they face, including shrinking habitats. There are six living sloth species, divided into two types: three-toed sloths and two-toed sloths.Desktop Version