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

An extravagant 18th-century fountain built with bits of broken ceramic.

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

The masses at this church incorporate enough moonshine and animal sacrifice that they are no longer recognizably Catholic.

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

A small pack of an ancient, hairless breed of dog once believed to guide souls through the underworld lives on its grounds.

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

The Mexican painter Diego Rivera created this unusual museum to display his collection of pre-Hispanic artifacts.

These enigmatic columns tower over the ruins of an ancient Toltec city.

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

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

CDMX's home for the world's culinary delights.

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

The stoutest tree in the world.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

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

The largest cave shaft in the world is home to thousands of birds and popular with BASE jumpers.

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

A uniquely robust and historic look at Mexico's omnipresent dance with Death.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Frida Kahlo's childhood home, now a museum of her life and works.