This archeological site hidden behind Teotihuacán's pyramids shelters 1600-year-old murals.

A beautiful example of 18th-century engineering still standing tall.

These nearly 500-year-old scenes are largely faded by the ravages of time, yet still maintain their power to horrify.

This monument marking the center of Mexico might be more political than geographical.

This truck is celebrated as part of the "miracle" that connected this town to the rest of Mexico.

Extraordinary sculpture garden created by an eccentric English poet.

This vintage animatronics show is the Vegas version of a walk through the woods.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

Ancient pueblos built into the base of a natural canyon wall.

An important piece of history from mankind's journey to the moon sits in the lobby of a government science lab.

Legends surround this jagged rock formation in the New Mexico desert.

A technicolor place of worship for Elevationists.

The largest source of fossilized insects anywhere.

A narrow ghost town built onto a peninsula behind a Colombian Slum.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

The (usually) serene burial place of the world's most notorious drug lord.

This former rail stop in Utah was abandoned, repopulated by some nostalgic friends, and now is home to a single DIY aviator who lives in a hangar.