Banksy's image of a naked man dangling from the window of a sex health clinic.

There's a labyrinth of manmade tunnels stretching for over an acre beneath Bristol.

The Bristol Camera Obscura housed in an ancient windmill.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Pleistocene megafauna fossils are the subject of Nevada's newest state park at the northern edge of the Las Vegas metropolitan area.

This arid landscape was once a lush wetland. Today, it's a paleontological site filled with fossilized mammoths, sabertooth cats, and more.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The best Tiki bar in Las Vegas.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

Once the tallest building in the world and the site of “the highest dinner ever held in New York” this building now holds the most expensive penthouse in the city.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

One part local history, 99 parts gruesome haunted house.