This bridge was constructed from the rubble of the infamous Bastille.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

This colorful statue welcomes visitors to a Barcelona park.

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

An early 20th-century bullring converted into a modern shopping center.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

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.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Mountain where Jesus was first tempted by the Devil.

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

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

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

This Underground station has been a popular filming location for decades, even before it closed.

A surprisingly approachable statue of the man who dominated King Henry VIII's government.

England's most famous front door has an accidental doppelganger.

Modern commuters still pass through this 2,000-year-old Roman archway.

A fully functional, 200-year-old remnant of the time when Brixton was mostly fields.

Unusual British home built to disguise a water tower.

The ritual has been performed uninterrupted for nearly 700 years.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

An architectural oddity hides in plain sight on this iconic London bridge.