A "time traveler's" vision of human history stretches throughout Mexico City's Copilco metro station.

This museum houses two of Mexico's most impressive Aztec monoliths.

This graveyard boasts a medley of diverse and imaginative funeral architecture.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

This clock was gifted to Mexico as a show of gratitude for its long history of welcoming Arab migrants.

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

In Coyoacán, a pair of coyotes crown a public fountain in reference to the ancient Aztec name of the borough.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

These museum grounds are a Dalai Lama-declared peace oasis.

These subterranean models show Mexico City's central square during three different eras.

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

Inside a busy metro station, an impressive mural depicts the prehispanic city of Tenochtitlán.

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

The most complete statue of this Aztec god sits a top a throne carved with images of hallucinogenic plants.

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

Three sinkholes filled with warm, crystal-clear water reached by a horse-driven cart on an old train track through the jungle.

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

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

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

This colonial mining complex is now home to magnificent themed gardens.

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

The ruins of an ancient temple to the Aztec wind god discovered in the middle of a metro station.