This Costa Rican chapel is the most metal church in the world, literally.

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.

These ruined Incan mausoleum towers still bear carvings of sacred animals on their blocks.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

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

Huge stone depressions which may have acted as an Incan agricultural experiment.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

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

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

Did Inca children also slide down these smooth rocky slopes above Cusco?

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Death rituals and sacrifice inside a Peruvian megalith.

An Inca spa, military outpost or maybe… both?

A nightmare for the claustrophobic lies hidden in Southeast Asia.

The large collection of pre-Columbian pottery might make you blush.

A pretty park of over 1,600 olive trees that grew from just three saplings brought over from Spain.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

A Civil War Museum with some notable medical antiques.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

The site of the climactic scene from the classic horror film is now a historic landmark.

The span is crooked and made from two older recycled bridges.