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

This Czech military museum is home to pink tank that was once a symbol of art and political rebellion.

A surreal statue honoring Prague's favorite literary son.

Macabre astrological automaton clock dating to the late 1400s.

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

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.

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

Looming communist pillar with a Czech twist.

Bohemian paradise covered in majestic forests.

An enormous and lavish Gothic church in Czechia.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

This renaissance château was home to an infamous witch hunter who sent a hundred suspected witches to their deaths.

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

The sanctuary holds what was once believed to be the saint's incorruptible tongue.

Tiny communists hammer away on the Olomouc Astronomical Clock.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

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

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

A cheeky architectural easter egg.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.