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

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

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

Massive installation of Europe's negative stereotypes.

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

A cheeky architectural easter egg.

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.

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

The oldest garden in Prague, once part of an medieval orchard.

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

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

A bus with a butt and biceps to put Olympic athletes to shame.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

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

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

The mystery of the Putim Ossuary involves a tricorn hat.

These 17th-century mummies are no longer naturally preserved, but remain on display today.

Monument to a suicide protesting the Soviet invasion.

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

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

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

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