The world's largest reflecting pool is just two centimeters deep.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Where once there was a train station bathroom, there is now this German burger joint.

A fascinating insight into daily life in the Eastern Bloc.

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

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

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

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Elevated freight railway turned wildly successful urban park.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

France's high-tech, future-themed amusement park.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

A contemporary fresco movement illustrates the region's rich history.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.