251 Items Tagged

Subterranean

Washington, D.C.

Lincoln Memorial Undercroft

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

Permanently Closed

Water Tank Beneath Palais Garnier

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

Nearly every inch is lined with speleothems.

Caverns of Sonora

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

Some of the stalactites

Tambon Rong Kwang, Thailand

Pha Nang Khoi Cave

The long underground cave's curiously shaped stalagmites have inspired many legends.

A door to the tunnels

Xianning Shi, China

Underground Project 131

This Cold War–era underground city includes offices for Mao Zedong and Lin Biao.

One of the 13 entrances of the complex

Vĩnh Thạch, Vietnam

Vịnh Mốc Tunnel Complex

This network of tunnels housed an entire village for years, and even had a hall for screening movies.

The Batagaika Crater

Verkhoyanskiy ulus, Russia

The Batagaika Crater

The giant Siberian crater known locally as the "doorway to the underworld" is expanding every year.

Bunker under Gare de l'Est

WWII Bunker Under Gare de l'Est

A subterranean shelter remains intact under a busy Paris railway station.

Frederiksberg, Denmark

Cisternerne

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Permanently Closed

An un-rennovated tunnel at Crown Finish Caves

Brooklyn, New York

Crown Finish Caves

Underground vaults of a former brewery beneath Brooklyn's Crown Heights are now used to ripen cheese.

Lasco project - Cleon Peterson

Lasco Project at Palais de Tokyo

A modern-day Lascaux cave underneath Paris.

Remnants of the streetcar station.

Washington, D.C.

The Dupont Underground

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

New York, New York

The Hidden Art Deco Tunnel Underneath the New Yorker Hotel

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

Leiðarendi Lava Tube

A winding, blood-red tunnel of hardened lava navigable by foot.

The doors on the north side of the Loveman's Building leading to a retaining wall.

The Mystery of Why Chattanooga Raised Its Downtown by a Level

There's a hidden layer of Chattanooga underneath the current city.

Daniel Jackson December 19, 2016

Interior cave walkway

Iwaizumi, Japan

Ryūsendō Cave

A massive cave complex boasts some of the clearest water (and most charming bats) in the world.

Techatticup Mine.

Techatticup Mine

This famous Nevada gold mine, once a hotbed of Wild West shenanigans, is now open for tours.

Casemates overlooking Alzette River

Luxembourg, Luxembourg

Bock Casemates

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.