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

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

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

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

This former lieutenant governor's home is brimming with curiosities.

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

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

The world's largest collection of intentionally useless inventions.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The secret city built by the Manhattan Project.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

Where the line between entertainment and aerospace blurs.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

A giant gun barrel in Barbados that once hoped to shoot outer space with science.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

Turkish adventurer antiques in the heart of the Grand Bazaar.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

An enormous concrete structure built over a nuclear crater.

Home of the International Space Hall of Fame.

Electrical curiosity museum housed in an old transformer station.

The birthplace of both the Atomic Age and Godzilla, and the namesake of the bathing suit.

Wisconsin's most celebrated export gets the royal treatment on I-94.

A steampunk wonderland that preserves America's history of industrial innovation.

"There's nothing there," and other lies the KGB told us.