These spectacular ruins were built by Spanish padres in the 17th century.

An unrecognized micronation declared by Greenpeace to protect the glaciers of Chile.

As one of the world's largest hydroelectric dams this plant took two countries to get built.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

This colossal hiking boot, once built for a scout jamboree, serves as an observation tower and barbecue area.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

The only castle in North America to ever house European sovereigns.

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.

A little sculpture with a large wardrobe.

When you're a great Russian Tsar, even your vomit gets a statue.

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.

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

This beautiful example of neoclassical architecture is one of Uruguay's most treasured cultural gems.

A replica of a famous Greek statue adorns the front of the unusual home of architect and alchemist Humberto Pittamiglio.

This magnificent abandoned hotel has long been haunted by its Nazi past.

One of South America's most exclusive resorts has a storied history dating back to World War II.

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

This stunning mass of ice spans 121 square miles and is still growing.

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

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.