Legend has it thieves once stashed their treasures in this crater in the Mexican desert.

This grand yet little-visited tomb seems almost carved into the hill it sits on.

Mexico's largest collection of masks is found in the ruins of an abandoned convent.

The spectacular subterranean collection includes dazzling minerals, including a piece of "kryptonite."

Fragments of the former temple's lost facade are now displayed in a strange library of stones.

Hotel designed around a 16th century Mexican bullring.

During its heyday, the massive estate boasted its own railroad station and post office.

A formerly derelict railway workshop is home to a new world-class contemporary art museum in Central Mexico.

Public clocks around the city chime with bullfights, cockfights, old railways, and other local traditions.

In Mexico, an abandoned Scottish-looking castle stands as a tribute to love.

This ornate church designed by a self-taught architect is an eclectic masterpiece in the heart of Central Mexico.

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

The history of this futuristic crypt-turned-temple is as curious as its facade.

The artwork detailing the city's history features a few controversial characters.

A museum dedicated to the famous Mexican illustrator's iconic calaveras.

An impressive if morbid collection of mummified remains from different eras of the region's history.

Things roll uphill on this Mexican street that seems to defy gravity.

A neo-Gothic temple in central Mexico featuring a labyrinthine network of crypts.

Shocking dioramas of human torture, meant to promote human rights awareness.

The corner walls of a primary school showcase a Mexican version of memento mori.

The jewel of western Mexico's archaeological legacy is this tiered circular pyramid now covered in grass.

The Rio Lerma (Chignahuapan) in El Salto, Mexico, is one of the most polluted rivers in the world. It’s covered in white foam, and falling in can kill.

One of Mexico’s historic pottery-producing towns is home to a museum showcasing the craft.

This singular Mexican structure is considered a masterpiece of the Tapatía architectural school.