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

The "Little Ones," show Portugal in full miniature splendor.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

The corpse bride of Portugal.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

An enormous and lavish Gothic church in Czechia.

A church of bones, decorated with 40,000 human skeletons.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

One of the largest ossuaries in Spain is packed from floor to ceiling with bones.

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

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

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

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

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