International Day for Monuments and Sites Apr. 18, 2025

Imagine a world without the pyramids, the Great Wall or ancient cave cities—hard to picture, right? That"s why April 18 is the International Day for Monuments and Sites, an event recognised by UNESCO dedicated to protecting cultural treasures worldwide. This day is all about celebrating our history, raising awareness about endangered sites and making sure future generations can enjoy them too.

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Today in History

A mountaintop cultural wonder
Apr. 18, 2024International Day for Monuments and Sites
Apr. 18, 2026World Heritage Day

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Sep. 28, 2025Town of Pienza in Tuscany, Italy
May 29, 2024World Otter Day
Amber waves of grain
A sky full of stars
Birthplace of the Renaissance
World Hippo Day, a giant celebration
Jan. 27, 2024St. Paul Winter Carnival
Boardwalk nostalgia
May 16, 2026Smith Rock State Park, Oregon, United States
Nov. 4, 2023American bison
May 2, 2026Jasper National Park in Alberta
Sep 12, 2026California sea lions, offshore Mexico, Pacific Ocean
Nov. 16, 2024Wadden Sea coast, Friesland, Netherlands
Jun 4, 2026Snowy egret preening, central Florida, United States
The envy of postcards and snow globes
Dec. 31, 2023Happy New Years Eve!
Incan ingenuity
A window to the Pacific
Sep. 26, 2023Venice Skatepark, Los Angeles, California
Jul. 2, 2024Italica, an old Roman city in Santiponce, Andalusia, Spain
Jun. 24, 2024Kelimutu, Flores, Indonesia
Aug. 20, 2024Sunrise at Grand Teton National Park, Wyoming, USA
Feb. 16, 2025Happy World Whale Day!
Jul. 17, 2024Rothenburg ob der Tauber, Bavaria, Germany
Want to hang out?
Sep. 3, 2025Grizzly bears at Katmai National Park and Preserve, Alaska, United States
Mar. 14, 2025Celebrating Pi Day
Oct 16, 2026Jasper Dark Sky Festival is here
Feb. 23, 2026Great white egret, Upper Bavaria, Germany
Sep. 30, 2025Koala in the Great Otway National Park, Australia