A vast array of tropical plants collected by a vacationing couple.

Human skulls and a stuffed goat made into a rocking chair can be found at this strange little store.

A building so large that it has its own weather.

Believed to be haunted, this old cemetery is beautifully adorned with Spanish moss hanging from the trees.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

A historic landmark and museum filled with curious objects representing the history of Key West.

An eatery for UFO seekers on the Extraterrestrial Highway.

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

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

An exotic wildlife habitat right off The Strip.

A collection of haunted objects and macabre oddities under one roof.

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

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

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

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Every president in history is immortalized in bronze in downtown Rapid City.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

Breathtaking and huge 430 year old maps of Italy.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Eighty million natural history specimens call this gargantuan museum home.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.