Silbury Hill for International Archaeology Day Oct 18, 2025

Each year, International Archaeology Day—observed on the third Saturday of October—invites us to literally look beneath the surface. Established in 2011 by the Archaeological Institute of America (AIA), it"s celebrated worldwide through events, tours, and hands-on excavations.

© dbstockphoto/Getty Images

palette

Today in History

Oct 18, 2018Fall comes to the Last Frontier
Oct 18, 2019Fall color sweeps across the West
Oct 18, 2020Sitka shines on Alaska Day
Oct 18, 2021A Welsh wonder turns 70
Oct 18, 2022The Guggenheim Bilbao turns 25
Oct 18, 2023Alaska Day
Oct 18, 2024Autumn in Central Park, New York

More Desktop Wallpapers:

Sep 11, 2023Patriot Day
Oct 6, 2024Ancient town of Sorano, Tuscany, Italy
Apr 26, 2025Redwood National and State Parks, California
Sep 27, 2021Sharp-dressed bug
Jul 23, 2020At the foot of Dubrovnik s Gibraltar
Jan 16, 2025Anniversary of Pinnacles National Park, California
Jan 30, 2023Ice and Snow Sailing World Championships
Oct 24, 2019Bridge of Hillsborough County
Jun 20, 2019In celebration of America’s national bird
Jan 28, 2025Short-eared owl
Mar 16, 2021Why does this panda cub look so happy?
May 7, 2021Deep in the North Woods wetlands
Nov 28, 2018Christmas comes to New York City
Mar 7, 2024Roques de Benet, Els Ports Natural Park, Catalonia, Spain
Jan 27, 2022Bluespotted ribbontail ray
Jul 6, 2019Racers pushing past sunflowers in the 2018 Tour de France
Jan 19, 2021The ruins of a Maya superpower
Oct 22, 2020Moving as one
Dec 28, 2024Endangered Species Act
Feb 27, 2023International Polar Bear Day
Jan 8, 2018Gardens by the Bay nature park, Singapore
Jun 14, 2019A perfect day to fly your flag
Feb 13, 2019Life goes on at the Beatles Ashram
Dec 14, 2023Christmas Bird Count
May 6, 2018A wetland in Västmanland, Sweden
Aug 29, 2021Notes from an underground lake
Jan 22, 2018Bird’s-eye view of the Golden Gate Bridge, San Francisco, California
Mar 8, 2019‘Think equal, build smart, innovate for change’
Oct 3, 2020In the belly of Fat Bear Week
Dec 27, 2025Plate ice along Lake Superior, Grand Marais, Minnesota