Hang Sơn Đoòng, Phong Nha-Kẻ Bàng National Park, Vietnam Aug 9, 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

A day for the worlds Indigenous populations
9,000-year-old handprints
Aug 9, 2025Raksha Bandhan

More Desktop Wallpapers:

Fly me to the moon
Oct 4, 2024World Space Week begins
Oct 18, 2023Kodiak National Wildlife Refuge, Alaska
Pick your paradise
Sep 26, 2024Blue-throated toucanet, Los Quetzales National Park, Costa Rica
Nov 18, 2025Male hooded merganser, Oregon, United States
Jun 17, 2025Maritime forest in Cumberland Island National Seashore, Georgia, United States
Jul 19, 2025Luna moth in New Braunfels, Texas, United States
The picturesque Mughal architecture
Feb 19, 2026Dragons Eye, Uttakleiv Beach, Norway
Whos in this creepy copse?
A glimpse of the grandest of canyons
May 5, 2025Dunluce Castle, County Antrim, Northern Ireland
There’s more to Pisa than leaning towers
Jan 27, 2026Dalmatian pelicans, Lake Kerkini, Greece
Dec 14, 2025Royal Bengal tiger
Apr 2, 2025Sandstone formations in the badlands near Caineville, Utah, United States
All is calm
May 19, 2024Vernazza, Cinque Terre, Liguria, Italy
Jan 7, 2025Moeraki Boulders, South Island, New Zealand
Dec 20, 2023Val Gardena, South Tyrol, Dolomites, Italy
Feb 18, 2026Przewalskis horses
Aug 7, 2024St. Joseph North Pier Inner and Outer Lights, Michigan, USA
May 23, 2025World Turtle Day
Jul 2, 2025Spine-cheeked anemonefish
Where did you drop the fish, son?
Jun 8, 2024Gates of the Arctic National Park, Alaska, USA
One rare streak
Oct 12, 2025Village of Saranac Lake, New York, United States
Jan 12, 2025Crescent-tail bigeye fish, Great Barrier Reef, Australia