The hidden lair of an alchemist rediscovered in a 2002 flood.

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

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

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

An eerie, existential museum dedicated to the author of "The Metamorphosis."

A spiral staircase twists to the top of this unusual Czech lookout tower.

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

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

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

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

Unique house covered in a nightmarish mural of demons, ghosts and monsters.

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

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

A former squatter's paradise outside Prague.

Steadily reminding Czechia of its past.

The mystery of the Putim Ossuary involves a tricorn hat.

The soulless eyes of 82 bronze children stare on forever in remembrance of a horrifying World War II massacre.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

Mysterious painted skulls in Moravia.

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

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