These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

This huge metal monument is slowly being stripped to its concrete skeleton.

Sacred waters rescued from the wrath of a volcano.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

One native village in Bali lays their dead at the foot of a holy tree whose natural fragrance seems to hide the stench as the bodies decompose.

In this African village, the walls of the chief's compound are painted with beautiful traditional designs.

Bright Indonesian villages painted in a rainbow of competing color schemes.

This Indonesian village was revitalized by a vibrant rainbow paint job.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

Xul Solar was an artist of alternate worlds, inventor of languages, and dreamer of utopias.

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

An Argentinian businessman facing terminal cancer built this whimsical medieval village using salvaged materials.

These jagged limestone blades cut out through the canopy of the jungles of Borneo.

This rare wildlife haven in Singapore feels like you're in the tropical rainforest.

Death rituals and sacrifice inside a Peruvian megalith.

A colorful Peruvian city of the dead.

These giant mummies are set ominously into a Peruvian cliffside and topped with real human skulls.

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

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

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

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

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

A manifestation of modernist architectural ideas, this massive, multi-purpose building was one of the first of its kind in Southeast Asia.