A tribute to long time Venice Beach resident, artist and actor Dennis Hopper.

Both church and state get put to the torch in this annual festival in the "Bonfire Capital of the World."

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Banksy gives themself artistic license with this piece of London street art.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

Lie in a hammock where George Washington stood.

The palatial McDonald's that inspired Wesley Willis.

Illegal drag racing two stories beneath Chicago’s streets.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This historic hotel invented the chocolate brownie.

Once the home of a hermetic monk, this cave now houses a small church.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Over 4,700 miles of trees being planted to hold back the desert.

This giant statue is the product of a mixture of corruption, Stalinist architecture, and North Korean manpower.

Despite a fraught and controversial history this African island holds a powerful monument to the tragedy of the slave trade.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

A hot dog stand where the heads are just as hot as the dogs.

A beloved Chicago music venue offering cold beer and lots of “Friendly."