A battle between nature and architecture in the Cambodian jungle.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A little sculpture with a large wardrobe.

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

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

Op-art architecture designed for happiness.

The "Prussian Versailles" that is as glorious today as when it was built.

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The prototype for all Nazi concentration camps.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

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

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

Looking for a crappy restaurant? Pull up a porcelain bowl and enjoy your meal.

Memorial to the father of the Republic of China.

Enormous pendulum helps keep Taiwan's tallest building from swaying.