An underground city of salt.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

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

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

A national collection of Communist-era musical posters.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

Journey through this open museum where even employees remain true to period.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

The former home of a disgraced local priest now hosts a mysterious secret supper club.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

Sniff the Titan Arum's rotting flesh.

Ride the subways of yesteryear.