This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

The world's only known button museum.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

One of the best-preserved medieval streets in Europe.

Learn about the sweet, storied legacy of beekeeping in ancient Greece.

Monasteries on rock pillars, once accessible only by frayed ropes.

The hallucinogenic center of the ancient world.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

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

Nordic giants resurrected from the sea and restored to their former greatness.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

A taste of Middle Earth, in the middle of the Bayou City.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

Beer lover's can-covered house.