Not every cool adventure lies above ground.

Whether you’re a history buff and get goose bumps over the thought of entering a real-life Cold War Bunker or love art and would be pumped to see a gallery in an underground subway, there are a number of weird (but incredibly awesome) subterranean things to do in places across the world. Here’s nine little known underground attractions you should keep on your radar.

Photo by [Jules.Bran](

Photo by Jules.Bran

Paris, France
One of the most infamous underground “attractions” in the world, the Paris catacombs is a 200-mile network of tunnels that include the remains of over six million Parisians. This isn’t a typical stop for most visitors on their Paris tour, especially if you’ve seen already seen the movie As Above So Below.

Photo courtesy of Louisville Mega Cavern

Photo courtesy of Louisville Mega Cavern

Louisville, Kentucky
If you ever find yourself in Kentucky and don’t mind heights (or caves), Louisville Mega Cavern is the world’s only fully underground zip line course. It also has a ropes challenge course and a ridiculous bike park.
Photo courtesy of [Inside the Volcano](

Photo courtesy of Inside the Volcano

Southern Peninsula, Iceland
Dormant or more than 4,000 years, the inner chamber of the Thrihnukagigur volcano is now a field day for rock geeks and adventurous visitors. You can take a cable car that puts you 390-feet into the center of the volcano and even hike its lava fields.

Photo by [readontheroad](

Photo by readontheroad

White Sulphur Springs, West Virginia
Underneath one of the Allegheny Mountain’s most luxurious resorts lies the Greenbrier Bunker, secretly built in 1956 as a nuclear bunker for members of Congress and could fit up to over 1,000 people. Now visitors can walk behind the 25-ton blast doors and get a feel for what the Cold War days were really like.

Photo by [Nigel

Photo by Nigel’s Europe & beyond

Wieliczka, Poland
Active since the Middle Ages, the Wieliczka Salt Mine is a UNESCO World Heritage site for a good reason. With elaborate underground rooms carved by miners and a ridiculous subterranean cathedral carved entirely from salt (yes this includes the chandeliers), it’s worth going underground for.
Photo via [YouTube](

Photo via YouTube

Wales, UK
Who says you have to be a kid to enjoy giant ass trampolines? Bounce Below has three trampolines, one above the other, that are all connected by slides and ladders completely underground.

Photo by [Frank Fujimoto](

Photo by Frank Fujimoto

London, England
During World War II, members of the military and even Winston Churchill occupied this underground bunker from 1939 to 1945. Now part of the Churchill War Rooms museum, artifacts like large maps down to the chair Churchill sat in have been preserved.

Photo by [Tobias Lindman](

Photo by Tobias Lindman

Stockholm, Sweden
One of the world’s longest (and coolest) art exhibits lies deep below the ground in the empty Stockholm Metro Station. Over 90 of the 100 subway stations are comprised of paintings, sculptures, installations and mosaics by over 150 artists.

Photo courtesy of The Cavern Pub

Photo courtesy of The Cavern Pub

Liverpool, England
Any bar that is credited as the birthplace of The Beatles is one worth trekking to. The Cavern Club, which became one of the most popular bars in England, is a cellar consisting of straight brick under a seven-story fruit warehouse. If it looks like a wine cellar that’s because that’s what it used to be used as, along with an air raid shelter during World War II.