Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

A 16th-century Andalusian palace.

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

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

The world's largest wooden structure.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A lush indoor jungle fills this bustling Madrid transportation hub.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

An ancient Egyptian temple in the middle of Madrid, Spain.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

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

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

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

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

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

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.

Week-long block party becomes a competition for the best decorated street.

A beautiful but toxic fountain of mercury.

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.

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.