A red-brick former uranium-ore sorting facility, located within a communist-era forced-labour camp.

A mesmerizing landscape of 18th-century cellars carved out of the land.

This trio of reliefs—an ear, a mouth, and a pair of eyes—carved into the walls of flooded quarries is a monument to spying.

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

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

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

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

Dedicated to the works of the legendary special effects artist.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

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

This place bears witness to the loss of many lives during WWII, and stands in stark contrast to the American Cemetery.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

This riverside restaurant has been serving customers since 1146.

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

This ancient structure is widely thought to be the oldest intact pyramid in the world.

In 2400 BC, two male hairstylists decided to spend eternity together. But maybe they were just friends?

Modest but unique pyramid built for a pharaoh has been reduced to a “heap of stone.”

A monument marks the site where the famed composer stopped to relieve himself on a long journey. Just one problem: Mozart never went to Raschala.

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

Op-art architecture designed for happiness.

The topiary maze at the Habsburg hunting lodge.

Apartment complexes built into huge repurposed natural gas tanks.

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