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

A fascinating insight into daily life in the Eastern Bloc.

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

Few other hotels can rival the grandeur of the Castle in the Rockies.

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

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

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

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

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

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

The celebrated eyesore created by starry-eyed sweethearts.

This massive library holds what was once the largest book collection in the world.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Macabre astrological automaton clock dating to the late 1400s.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

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

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