Hang Sơn Đoòng, Phong Nha-Kẻ Bàng National Park, Vietnam Aug 15, 2024

In 1991, a Vietnamese logger stumbled upon something big in Vietnam"s Phong Nha-Kẻ Bàng National Park. During a jungle expedition, he found the entrance to a cave with a roaring underground river, which was later named Hang Sơn Đoòng or "cave of the mountain river." In 2009, the British Cave Research Association led an expedition to explore the site. It was then that they realised something incredible: it was the world"s largest cave.

© Geng Xu/Getty Images

palette

Today in History

Aug 15, 2025Spotted eagle rays

More Desktop Wallpapers:

Nov 26, 2023Fallow deer in Bradgate Park, England
Jun 27, 2025Splendid leaf frog
Jan 4, 2024Golden Gate Bridge, San Francisco, California
Sep 22, 2025Aspen trees, Fishlake National Forest, Utah, United States
Oct 26, 2025Pumpkin farm, North Carolina
Sep 22, 2023Marsala salt pans, Italy
Feb 21, 2025Champaka Sarasi, Shivamogga, Karnataka, India
Sep 9, 2023Ayutthaya Historical Park, Thailand
Apr 24, 2024White trilliums in Ontario, Canada
Mar 8, 2025Schleswig-Holstein Wadden Sea National Park, Germany
Dec 17, 2024Reine, Norway
Oct 2, 2024Wind River, Arctic National Wildlife Refuge, Alaska, USA
Jun 17, 2025Maritime forest in Cumberland Island National Seashore, Georgia, United States
May 14, 2024Carlsbad Caverns, New Mexico, USA
Sep 12, 2025Spinner dolphin pod
Dec 25, 2025Reindeer, Lapland, Finland
Sep 14, 2024Rapa Nui National Park, Easter Island, Chile
Feb 2, 2026Alpine marmots, Hohe Tauern National Park, Austria
Aug 7, 2025Gasparilla Island Rear Range Light, Boca Grande, Florida, United States
Jan 22, 2024Walton Lighthouse, Santa Cruz, California, USA
Nov 7, 2023Kirkilai lakes, Biržai Regional Park, Lithuania
Jul 27, 2025Barracudas at Shark Reef, Ras Mohammed National Park, Sinai Peninsula, Egypt
Jul 14, 2024La Geria wine region, Lanzarote, Canary Islands, Spain
Jun 28, 2024Chausey Islands
Mar 20, 2025Daffodils
Aug 21, 2025Wheatear, Peak District National Park, England
Feb 19, 2024Puerto de la Cruz, Tenerife, Spain
Oct 5, 2023Gentoo penguins, Antarctica
Nov 8, 2024Glacial rivers, Iceland
Mar 19, 2025A black heron canopy hunting in Botswana