One of the world's most advanced radio observatories sprawls across the Atacama Desert.

The ruins of a pre-Columbian fortress city so secure it held off the Spanish conquistadors for over 20 years.

The gorgeous murals at this open-air museum form the largest street art collective in Chile.

This iconic hilltop church doubled as a lighthouse in the 19th century, guiding ships into the port of Valparaíso.

The rusty hull of this 1899 ship serves as a tribute to explorers of the bottom of the world.

You can swim in these highly salty, mesmerizingly blue lakes in the Atacama Desert.

Named for the DeFoe novel inspired by a stranded sailor, this island is known for its rare plants and extreme beauty.

Towns with a resource known as "white gold," valuable enough to fight a war over, now stand ghostly and empty.

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

This large round boulder is said to emit spiritual power, but it may just be magnets.

A fantastical and futuristic temple of light built from nine monumental glass veils.

The ominously named cave is home to some remarkable ancient art.

One of the oldest colonial buildings still standing in South America.

You have to know where to look in this rather ordinary-looking square to find hints of its past as a dissidents' cemetery.

This colossal structure and its accompanying angel often play tricks on the eyes.

An intriguing antique iron Ferris wheel that most locals are sure was designed by Gustave Eiffel.

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

One man's quest to collect artifacts from every aspect of human life has resulted in this eclectic Argentinian museum.

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

One of the largest ancient geoglyphs in the world is a tall desert god used for predicting the weather.

In the most arid desert on the planet, the world's leading telescope allows astronomers to see more than has ever been seen before.

A record-breaking pool that uses computers to turn ocean water into cleaner, private swimming water.

What was once a unique system of urban elevators is turning into a mechanical ruin.

The “City of Stairs” sits high in the Andes, above the world’s largest underground copper mine.