High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

This ceremonial Mexican square looks as though it belongs in a science fiction movie.

An Aztec snake god has taken the material form of an apartment complex.

This fantastical house shaped like a seashell brings aquatic design to architecture.

Mexico's first public cable car soars over the congested streets outside Mexico City.

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

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

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

A quirky and charming restaurant founded by artists.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Hidden in the shadow of a rocky fortress is one concubine’s long-forgotten legacy.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

Less a museum than a bizarre fantasy world created by artists and engineers.

100 massive sculptures in the Hudson River Valley.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

Trace the history of writing at this unusual North Carolina destination.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

South Korea's love of the silly photograph is on full display at this goofy collection of trompe l'oeil paintings.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

One of the largest, oldest, darkest, quietest motel rooms in the world.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.