A deadly ancient portal to the underworld.

Roman ruins top white travertine terraces formed by ancient hot springs.

Lithuania's outdoor sculpture trail of wooden folk art.

This smily stone feline is meant to represent a mythical lion that almost destroyed the island of Kea.

A sharp sculpture made of thousands of pieces of jagged glass.

A fearsome dragon clings to a corner of Munich's city hall.

It's always summer at the beach inside this former airship hangar.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

This German version of Universal Studios holds a vault of treasures from the NeverEnding Story.

This unique Renaissance castle was turned into a home for Nazi occultism.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

No need to strap in for a "ride" on this walkable roller coaster.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Art and a pun, all in one.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

A collection of collections ranging from dentistry to minerals.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

Menacing or in memoriam, the Silent People and their meaning are left to interpretation.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

In Faroese legend, this sinister horse-shaped beast lures unsuspecting passersby only to drown them in the lake.

The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.