A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

A hidden treasure of an abandoned city lies deep in the jungles of Campeche, Mexico.

Experiencing Guatemala's sensory-exploding church is a blunt reminder of European influence.

The remnants of an archaeological camp stand within Tikal National Park.

A full-size replica of this well-preserved temple lets you take a walk through the Mayan age.

Mesoamerican monoliths and zoomorphic stones covered in royal visages, ancient mythology, and grand celestial events.

Hidden deep in the Guatemalan jungle is a turquoise paradise of natural pools, caves, and waterfalls.

An enormous, 30-story-deep hole in the middle of Guatemala City.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Extraordinary sculpture garden created by an eccentric English poet.

These azure waters were thought to lead to the Mayan Underworld.

A gargantuan crystal kingdom.

An Aztec snake god has taken the material form of an apartment complex.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

A jungle cave in Peru of unknown depths, otherworldly sounds, and strange nocturnal birds that navigate by echolocation.

One of the most remote lodges in the Amazon offers rare wildlife encounters and undisturbed views of the Peruvian rainforest.

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

One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

Extraordinary rock formations in open Peruvian fields.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.