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

Museum precariously perched on a massive yellow pillar.

Solitary monument dedicated to the beauty of nature.

This attraction is devoted to the wonders of steam power and features a replica of one of its most public disasters.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Abandoned bull fighting ring, slowly falling apart in Uruguay.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

An epic sculpture depicting a wagon and straining oxen.

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

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

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

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