This former insane asylum now holds a pathological anatomy museum.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The final resting place for the remains of 143 Habsburg royalty.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Ride a dragon train into a world of dwarves.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

There has been an astronomical clock on this spot since the 14th century.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

This century-old cinema house has a marquee that has been hand painted by a single man for over 25 years.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Statue of death tucked in the University of Medicine courtyard.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Art deco landmark on the outskirts of Washington, D.C.

The site of the climactic scene from the classic horror film is now a historic landmark.

At 207 feet, one of the world's longest continuous escalators.