304 Items Tagged

Underground

Leiðarendi Lava Tube

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

Chattanooga, Tennessee

Ruby Falls

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A replica of an operational base.

There Are Hundreds of Secret Underground WWII Bases Hidden in British Forests

Built to fight a Nazi invasion, they remained unknown for decades.

Sarah Laskow November 30, 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.

Most of the route visitors take is through eerie, dimly lit underground corridors.

Bydgoszcz, Poland

The Exploseum

An abandoned Nazi explosives plant founded by the inventor of dynamite is now an underground museum.

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.

Naours

Cité souterraine de Naours (Underground City of Naours)

A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.

Tourists in the Catacombs of San Gaudioso.

31 days of halloween

The Greatest Teen Job in the World Might Be Reopening Italian Catacombs

La Paraza Cooperative is bringing Naples' ancient catacombs back to life—and revitalizing their city in the process.

Cara Giaimo October 24, 2016

The newly painted outside of the Brunel Museum.

London, England

Brunel Museum Grand Entrance Hall

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

Permanently Closed

Sala Silver Mine Hotel Suite

This luxury hotel suite is located deep in the bowels of an old mine.

Found: A Centuries-Old Network of Hidden Underground Tunnels

Old British town has very old tunnels.

Sarah Laskow September 26, 2016

Permanently Closed

Looking out from the Pogue's Run tunnel. (Photo: Stuart Hyatt)Looking out from the Pogue's Run tunnel. (Photo: Stuart Hyatt)

Indianapolis, Indiana

Pogue's Run

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

You Can Follow a Hidden Stream Beneath Indianapolis—If You Know Where to Look

Pogue's Run makes an appearance in the best-selling novel 'Underground Airlines.'

Sarah Laskow September 20, 2016

Found: Photos of Sewer Construction From 1901

A Scottish Water employee saved them from the trash.

Sarah Laskow September 12, 2016

Church of the Annunciation

Haute-Isle, France

Troglodyte Church

The Church of the Annunciation was carved into the face of a cliff, just like the rest of the town of Haute-Isle.

Moose Jaw, Saskatchewan

Tunnels of Moose Jaw

Underground tunnels once home to crime are now back open to the public.

Cell phone light trails illuminating the caves of Mønsted Kalkgruber.

Stoholm, Denmark

Mønsted Kalkgruber

Nearly 40 miles and 1,000 years of limestone mines under Denmark.