Astronomical observatory above Lake Titicaca.

The soaring gondola lines form the longest aerial cable car system in the world.

The celebrity luchadores of La Paz are tough ladies in traditional petticoats and braids.

Bolivia's needle-like rock formations.

A black and white solution to the Bolivian city's traffic problems.

Museum dedicated to the sacred leaf of the Andes.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

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

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

Of the many Jesuit missions in South America, this complex is one of the best preserved.

The fighters and conspirators that won independence for Paraguay held secret meetings at this historic house.

A beautiful museum filled with thousands of chairs.

A small museum tells how a group of Russian Mennonites ended up in the Paraguayan Chaco.

This giant Christ took first place in South America's religious arms race.

Using primarily recycled materials, artists transformed this house into a colorful piece of art.

It's not quite as old as its Roman appearance suggests, but this piece of infrastructure served Guatemala City for centuries.

In this pristine Ecuadorian hippie town, residents remain active well into their eighties and nineties.

A seemingly endless landscape of pure salt stretches far across Bolivia.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

A mysterious architectural gem in one of the most elegant areas of Buenos Aires.

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

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

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

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