These primitive rock paintings include a very beloved depiction of a woolly mammoth.

This 7,000-year-old megalithic wonder covered by a Franco-era reservoir emerges in times of drought.

A neighborhood park in the city of Cáceres hides what some believe are revolutionary examples of Neanderthal cave art.

Two stunning 17th-century libraries and a cabinet of curiosities.

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

Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

A colorful "forest" made entirely from three tons of recycled plastic waste.

This crumbling Art Deco movie palace in Mexico City has been abandoned for two decades.

Diego Rivera's massive tiled fountain and failed infrastructure project.

A church dedicated to the Mexican skeleton saint.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

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

66,000 pieces of art, donated by one of the world's richest men.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.

At least seven hues of blue and turquoise make this freshwater lagoon unique.

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

The enigmatic and seldom visited ruins of a Mayan city-state.

This partially reconstructed Aztec pyramid gives a glimpse of what its larger counterparts would have looked like.

An archaeological museum at the Aztec pyramid displays signs of the New Fire ritual performed every 52 years.

This beautifully deceptive waterfall is something far different from what it appears to be.

The stoutest tree in the world.

A 16th-century monastery boasts a lush array of plants native to Mexico’s most biodiverse region.

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