This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

A museum devoted entirely to the rattlesnakes and snake-related art.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

"I did this all while you were watching TV."

A clear blue swimming hole with hidden caves, still unexplored.

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

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

The site of one of history's most indelible and horrific tragedies.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

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

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

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

This ancient structure was built by a mysterious civilization that was largely destroyed by a volcanic eruption.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

On a cornerstone of the City Museum is the head of a monstrous serpent stolen from an Aztec pyramid 400 years ago.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

The only castle in North America to ever house European sovereigns.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

The world's second largest rocking chair is found on Route 66 in Cuba... Missouri.