Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

Death rituals and sacrifice inside a Peruvian megalith.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

The elaborate crypt where Peruvian heroes of the War of the Pacific were laid to rest.

The remains of what was the most important religious complex in coastal Peru for over a millennium.

This stone complex marks the urban center of a lost civilization.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

A museum founded to reflect on and remember the human rights abuses under Chilean dictator Augusto Pinochet.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

The final resting place of the liberator of Argentina is guarded around the clock by two soldiers.

A tower devoted to — and modeled after — the Divine Comedy.

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

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

A memorial to the victims of Argentina's "Dirty War."

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

Museum precariously perched on a massive yellow pillar.

Solitary monument dedicated to the beauty of nature.

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

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

One man's remarkable private collection of art from around the world.

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

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