Cliffs full of fossils at the portal to England's Jurassic Coast.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A cheeky architectural easter egg.

Living towers made of people that are now recognized by UNESCO.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

This quaint museum tells about more than just the birth of Jesus: "betlémy" are an important piece of Czech history.

This Gothic church was wheeled in its entirety to a new location a half a mile away.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

Be(w)ar(e) the moat around this historic Czech castle.

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

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

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

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

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