A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

A little sculpture with a large wardrobe.

Brussels' favorite peeing boy has a sister.

One of the largest squares in Europe contains an entire artificial island.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

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

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

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

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

A fearsome dragon clings to a corner of Munich's city hall.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

The world's most important buildings shrunk to a tiny size.

The medieval "dragon" on an Austrian city's coat-of-arms comes to life in a fountain.

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

This massive subterranean fissure is known as the "underground Grand Canyon."

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Island wonderland for communist autocrats.

The remains of a sunken military ship wreck visible through clear water.

Humble beginnings for one of the world's most famous scientists.