Named after an outlaw who used the basin as a hideout.

This former open-pit manganese mine is now a massive graffiti canvas.

A memorial to the unknown and unheralded men and women of the Cold War military and intelligence services.

A private Las Vegas horse ranch adorned with whimsical artwork.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

These huge stone ovens in the desert fueled the Nevada silver boom, and may have also been a hideout for outlaws.

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

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

This vintage animatronics show is the Vegas version of a walk through the woods.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

An exotic wildlife habitat right off The Strip.

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

The longest living non-clonal organisms on Earth.

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

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

This sign designates the road that leads to the infamous Area 51.

"Unity, Creativity, Beauty."

A collection of art from Bulgaria's time as a communist state.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

This historic Victorian hotel has a scandalous history of affairs and murder.

Single runway interrupted by a busy road that cuts across its middle.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

This magnificently macabre shield shows the power of chivalrous love in medieval times.