This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

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 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.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

A relic from one of London's worst 19th-century slums.

The final resting place of Dicky Pearce, the last court jester in England.

The "father of immunology" used this humble hut to offer the local people some of the world's first free vaccinations.

This pedestrian footbridge honors Pero Jones, an enslaved African who lived in Bristol.

After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

An authentic, seaworthy replica of the ship that sailed to Newfoundland in 1497.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

The Bristol Camera Obscura housed in an ancient windmill.

This statue in Holland Park might be one of London’s oldest outdoor statues, but its exact origins are unknown.

This unusually-named reservoir found a second life as a nature preserve.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Hidden behind Lincoln's head is a chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

Where Aleister Crowley attempted to seize the Hermetic Order of the Golden Dawn in a mask and a kilt.

This tribute to the fictional detective stands at the famous literary character's address.

The bust of a 15th-century Albanian leader in the middle of London.