Constructed on the ruins of a convent, this tower saved countless lives.

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

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

A bright little alley in La Boca is a part of tango history.

This beautiful fountain was sculpted by a female artist who was ahead of her time.

A gateway to a mysterious network of underground tunnels.

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

The narrowest house in Buenos Aires is less than 10 feet wide.

A massive display of meteorites all found in the Atacama Desert.

The largest geyser field in the southern hemisphere is a spectacular sight.

The 19th-century vessel floats proudly on Lake Titicaca, but its journey from Britain to the Peruvian altiplano was far from smooth sailing.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

The Uros people live on floating reed islands in lake Titicaca.

The Incas turned this ancient Wari aqueduct into an imposing defensive gate.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

A Christian monastery stands on what was once a holy Incan temple.

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.

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

This bullring in Lima is the oldest in the Americas and the second-oldest in the world.

In the upscale neighborhood of Miraflores in Lima, a pretty little park is home to dozens of cats.

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

A monument to the conquistador became increasingly controversial in the very city that he founded.

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.