This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The post-apocalyptic remnants of a bucolic town ruined by a plane crash.

This small, ingenious cannon once helped regulate Parisian life.

One of Jeff Koons’s largest sculptures and his first commemorative work.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

This mural painted by Keith Haring was done without payment as a gift to entertain the children at the Hôpital Necker.

The video game-themed street art first popped up in the French city.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

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

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.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

Abandoned railway line circling the city of Paris.

Steadily reminding Czechia of its past.

Looming communist pillar with a Czech twist.

A mocking tribute to the past and modern leadership of Prague.

Macabre astrological automaton clock dating to the late 1400s.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Countless grotesque faces stare out from this eerie Prague art wall.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”