This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

Macabre astrological automaton clock dating to the late 1400s.

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

The shell of a medieval fortress offers commanding views of the area it once protected.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

This one-time health resort was used by aristocrats around the world.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Visit an imposing 13th-century Transylvanian citadel lurking not far from the region's more heavily touristed attractions.

This massive underground salt mine now holds a sci-fi theme park in its depths.

A medieval church built up to defend its village.

Gigantic Romanian salt mines used to heal respiratory conditions.

An autonomous republic of Orthodox monks.

This Ocean Drive crosswalk has been paved in rainbow colors to honor the LGBTQ+ community and the man who brought pastel to Miami Beach.

A unique seaside cave where Aleister Crowley faked his own death.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A literally moving statue of stacked metal giants just continually trying (and failing) to find love.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

Fast food feels like fine dining at this award-winning modern Georgian building.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

A museum glorifying the life of Stalin, located in the city of his birth.