Death rituals and sacrifice inside a Peruvian megalith.

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.

An Archaeological Wonder of Peru, and the largest stone ruin site in the New World.

Now containing the bones of the actual conquistador, instead of someone else.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

A remarkable geological formation resembling a forest made of stone.

Extraordinary rock formations in open Peruvian fields.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

"The Star Factory" cranked out Hollywood stars like nobody's business.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Abandoned Air Force base that has fallen into disrepair.

Abandoned anti-ballistic missile base.

Rusty industrial city full of oxidized distillation towers.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

Factory that once supported an entire company town of 350.

A house built from trash known as the poor man's Hearst Castle.

One of the largest, oldest, darkest, quietest motel rooms in the world.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Community owned and operated, this property is home to a diverse set of nudists.

This naturally-sourced hot spring is now home to a clothing-optional resort.

The largest self-built castle in the U.S., six decades in the making.

Largest collection of mounted dinosaur specimens in the world.