A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

Abandoned substation turned village treasure.

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

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

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

Two stunning 17th-century libraries and a cabinet of curiosities.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Steadily reminding Czechia of its past.

A series of playful yellow penguins share a serious message about the environment.

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

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

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

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

A surreal statue honoring Prague's favorite literary son.

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

Countless grotesque faces stare out from this eerie Prague art wall.

A museum devoted entirely to the rattlesnakes and snake-related art.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

Ancient ruins hidden underneath a modern luxury hotel.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

An enigmatic modern marker left next to a historic Roman site.