The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

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

A former squatter's paradise outside Prague.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

This doorless 20th-century elevator doesn't stop or slow down.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

Europe's official "zero-level," the equator of elevation.

A public urinal so pretty, it was declared a national monument.

This unassuming shed was the stage for a monumental event in British history.

This king penguin is a knighted brigadier of the Norwegian Army.

A library where thousands of books explain how to avoid another Great Recession.

Lucerne's central prison was converted into a tourist hotel with a bare minimum of changes.

One of the highest emergency huts in the world has been waiting almost a century to give imperiled climbers a place to lie down.

Europe's largest dinosaur museum was founded by a passionate autodidact.

One of the world's largest collections of pharmaceutical artifacts.

A constellation of golden cobblestones shows the names of local children born under a full moon.

Featuring a meatless buffet fit for kings, this family-owned Zurich eatery is considered the oldest vegetarian restaurant in the West.

Hidden beneath a washing machine in a fake kibbutz, this secret bullet factory has been preserved as a museum.

The last of Amsterdam's original sea level markers remaining in place.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

A hidden sculpture garden tucked within the middle of Brighton.