Locals say the stone that marks the spot where the gallows once stood can lead you astray.

A Cold War secret surveillance tower used to spy on radio communications.

An existential riddle in the world's largest ancient castle.

A striking public sculpture representing the period of martial law in Communist Poland.

The 14th-century ruins are said to contain healing powers.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

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

600 stumps, branches, and trunks of different shapes and sizes.

A concrete plant shaped like four giant soldiers commemorates one of the most decisive battles of the Napoleonic Wars.

An unusual bronze bus shelter is actually an art installation commenting on the city's history with the Nazi party.

A Jenga-style cylindrical tower of books that appears to go on forever.

A surreal statue honoring Prague's favorite literary son.

A whimsical art tower at a Bavarian brewery includes a grotto for its mythical beer-brewing dwarves.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

This Gothic church was wheeled in its entirety to a new location a half a mile away.

Once a black market electronics marketplace, now an otaku shopper's paradise.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

An Orwellian sculpture with eyeball cameras watches passersby.

The largest manmade caves in Europe now function as a motorbike club's headquarters.

Europe's largest natural bridge has a 19th century royal chateau built into its side.