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

It's just another skyscraper, but it's shaped like '90s cell phone.

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

This observatory high on a hilltop in the center of Santiago got its start in 1852.

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

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

Locals visit this abandoned train tunnel where a man took his own life to ask favors of his spirit.

One of Chile's most active volcanoes is riddled with beautiful caves.

Are they the remains of a fallen hotel, or the final stronghold for escaped Nazis?

The island houses the ruins of a secret nuclear fusion lab that once employed high-profile Nazi scientists

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

Because sometimes the most efficient route from A to B isn't a straight line.

Off-limits and full of venomous pit vipers, Brazil’s Snake Island has a frighteningly apt nickname.

Many cities have held the title, but Brazil snatched the crown from Chile in 2011.

One of São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

Beautiful public park off the beaten path and away from tourists.

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

Known as the "Finger of God," a dramatic rock formation resembles a divine hand extending towards the heavens.

This Brazilian Lady Liberty is one of the few replicas that was actually made by the original designer.

This Estonian watchtower looks like a big tree with two giant bird nests on it, complete with a "golden egg."

It's rumored this unique Baltic beacon was designed by Gustave Eiffel himself.

This striking memorial is one of Estonia’s most controversial Soviet leftovers.

For the last century, this international border within a small town has appeared and disappeared various times.

A wooden replica of France's famous tower.