Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

This artificial cave looks like something out of a fairytale.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

A giant interactive periodic table with real samples of the elements.

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

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

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

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Monument to a suicide protesting the Soviet invasion.

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

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

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

This spooky statue sits outside a famous Prague theater.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The statue of a cursed knight is said to come to life every 100 years.

A surreal statue honoring Prague's favorite literary son.

An enormous and lavish Gothic church in Czechia.

A church of bones, decorated with 40,000 human skeletons.

Dedicated to the man who saved hundreds of children from Nazi-occupied Czechoslovakia.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Macabre astrological automaton clock dating to the late 1400s.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.