A beautifully designed asylum was resurrected as a hotel and art center with a ghost story or two.

The seat of Buffalo government is a gorgeous Art Deco palace.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

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

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

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

A fascinating insight into daily life in the Eastern Bloc.

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

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

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

A little sculpture with a large wardrobe.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

This "floating railway" is one of the world's oldest monorail systems.

A ruined castle stands atop a hill surrounded by dragon lore.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

Thousands of flowers create enchanting pink tunnels over the city streets.

A military museum and library dedicated to the citizen soldier.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A hollow cement depiction of time's inexorable effect on the human body.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.