A battle between nature and architecture in the Cambodian jungle.

A condom-covered Thai restaurant that is more concerned with birth control than food.

This 19th century cyclorama acts like an analogue time machine to a different era.

The fairy tale castle of the "fairy-tale king."

A small but immensely extravagant palace built by the "Night King."

The prototype for all Nazi concentration camps.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The most visited, and possibly most controversial, museum in Germany.

Theme park featuring miniature replicas of European monuments.

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

A little sculpture with a large wardrobe.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

The curious underground history of keeping Paris clean.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

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