An underground city of salt.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

Real bones which are said to have belonged to a Polish dragon.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

340-foot statue built to honour the Heroes of the Soviet Union.

A castle perched precariously over the Crimean Sea.

This space age health spa looks like a supervillain's lair.

In the land of the Light Brigade stands a testament to the Cold War.

The deepest metro station in the world.

If you want to take a peek at Area 51, this is legally as close as you're going to get.

Experience a charming 1930's version of "infotainment."

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

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

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

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

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

This lagomorph-obsessed Route 66 emporium is home to a giant jackrabbit that sits in a bunny graveyard.

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

The world's largest covered wagon is piloted by a giant Lincoln lawyer.