A crumbling hospital from the 1850s on Roosevelt Island.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Bathe in these natural hot springs located high in the Andes Mountains.

This space-age looking obelisk rises over a city in the rainforest, meant to resemble the local castaña tree.

In this mine all the gold you can carry may not be as sweet of a deal as it sounds.

A highland eco-park celebrates more than a thousand varieties of tuber.

This small oxbow lake has rare giant river otters and some Seussian-sounding birds.

A kitschy Italian medieval-style castle incongruously located amidst one of the most historic towns in the Peruvian Amazon.

A paradisical gorge with rapids, waterfalls, and wildlife whose raw beauty is the stuff of CGI movies.

Art school in the Amazon: Drugs, nature and sustainable agriculture.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

This unimaginably large pile of sand near Nazca is one of the tallest dunes in the world.

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

A fascinating little museum all about the rich history of Peru’s famous plant.

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

The world's largest clay lick, where parrots gather to snack.

Ain't no party like a ghost town party.

A colorful Peruvian city of the dead.

Extraordinary rock formations in open Peruvian fields.

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

The world's fifth tallest waterfall is a spectacular silver chute of water that cuts through the cloud forest in northern Peru.

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

With nearly double the depth of the Grand Canyon, this Peruvian canyon is one of the deepest in the world.