Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

The notorious Wild West outlaw was raised in this unassuming abode.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

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

A giant open-air sculpture made of over 200 full-sized boats.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

The haunting ruins of a military fortress turned astronomical observatory sit on a Sarajevo mountaintop.

The resting place for anonymous victims of the Danube's dark waters.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

The remains of an entire Roman city can be explored in this interactive museum.

A bridge destroyed three times: once as a ruse, then in an actual attack, and finally for the movies.

One of the largest barracks of the Austro-Hungarian monarchy's military is now an abandoned ruin.

A self-proclaimed libertarian micro-state on a tiny bit of disputed territory between Serbia and Croatia.

Festival of Perpetual Life and Rebirth.

A tribute to an iconic act of defiance from the Croatian War of Independence involving a small car.

"World machine" built by an untrained Austrian farmer.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

The shell of a medieval fortress offers commanding views of the area it once protected.