What are these beautiful sandy waves?

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Today in History

Underwater underground
Aug. 15, 2024Hang Sơn Đoòng, Phong Nha-Kẻ Bàng National Park, Vietnam
Dec. 19, 2024Sibiu Christmas Market, Romania
A cantilevered window to the past
This lesson is going swimmingly
Mar. 26, 2025Vancouver Cherry Blossom Festival
So fresh, so clean
Wait, mountain—you shall bear my castle!
Oct. 30, 2024Edinburgh Castle, Scotland, United Kingdom
Getting starry-eyed at the moon
Kickoff in Qatar
Will we be ready for the ‘big one?’
Feb. 3, 2024Carnival of Venice
Nov. 20, 2025World Childrens Day
May 5, 2025Torres del Paine National Park in Patagonia, Chile
May 28, 2025World Otter Day
May 29, 2025Miravet, Catalonia, Spain
Jul. 4, 2025Skipper butterfly on an Echinacea flower
See-through cephalopod
Jul. 26, 2025International Day for the Conservation of the Mangrove Ecosystem
A starry night!
Is anybody home?
Oct. 13, 2024Royal Alcázar of Seville, Spain
Apr. 8, 2025Paro Tsechu Festival, Bhutan
Owl be seeing you ... somewhere!
May 30, 2025Little Pigeon River, Great Smoky Mountains National Park, United States
May 8, 2025World Donkey Day
Nov. 24, 2023Green Friday
Feb. 16, 2024Great Backyard Bird Count
Who’s snoozing?