This magnificent brick dome was made with an unusual design method.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

"Alleys of Stone" form natural mazes in Spanish natural park.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

This cemetery features modernist statues as strange as its name.

This semi-secret storybook hedge maze is also the oldest garden in the city.

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

A model solar system adds a celestial touch to this suburban park.

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