With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

This abandoned viewing platform has become a monument to unnecessary government spending.

This 47-story "M" needed 20 years to be completed

Barça football fans might see the insignia hidden in a church window as a divine sign.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

Vibrant street art created with mixed media.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

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

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

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

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

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.

This house's itty bitty size means no humans allowed.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

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.

Dedicated to the Father of the British Fire Service.

The niches over the western entrance of Westminster Abbey honor individuals from the 20th century who gave their lives for their Christian beliefs.

Today, Kent's medieval monarchs hold court on a busy pedestrian thoroughfare—or at least their statues do.

The accidental discovery of this gilt bronze head led archaeologists to find the Roman Baths in the city of Bath

A storied London perfume shop that supplies scents for royalty has been operating out of this storefront for nearly 300 years.