A series of playful yellow penguins share a serious message about the environment.

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

A half-buried vehicle in Prague's is the latest iteration in a long-running piece by Czech artist David Černý.

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

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

The hilltop ruins of a border fortification in the Italian Alps that was much fought over.

A miniature train-ride through Slovenia's largest cave system.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

The easternmost town in Alaska can only be accessed from Canada.

Before building her own tombstone, an untrained artist created a concrete menagerie in her garden.

This spooky statue sits outside a famous Prague theater.

The world's first motorway was used as a racetrack until the late 1990s.

A decomissioned facility where the German "Transrapid" maglev trains were once tested.

Inside this Jewish cemetery is a memorial to soldiers who deserted the German army and were executed.

In this brilliant blue spring in Germany, legend has it that a sad mermaid learned to finally laugh.

Journey through a mesmerizing array of board games inside this museum.

These relics of the city's past now exist as a prominent modern feature.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

A gift from Emperor Franz Joseph I to his wife.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.