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

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

For decades, the parade of apostles that left the Expiatory Temple of Guadalajara remained hidden inside one of the towers.

One of the oldest hospitals in the Americas is now decorated in hallucinatory murals.

A place to learn about the history and culture of Mexico's largest Anabaptist group.

These cliff-dwellings might be Mexico's least visited archaeological site.

On a college campus in the Oklahoma panhandle a museum honors the last piece of the contiguous United States to be classified as No Man's Land.

At Oklahoma Panhandle State University, a plaque marks a place once known as No Man's Land in the linear world and the fictional Kcymaerxthaere as well.

A waterfall and cave near Arroyo Seco that inspired the writings of D. H. Lawrence, Willa Cather, and Mabel Dodge Luhan.

Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

A motel dedicated to Southwestern nostalgia.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

A museum befitting the city responsible for supplying the majority of the world's LSD.

A medieval castle in the middle of rural Texas.

This imposing modern citadel started out as a home renovation project.

All that remains of this abandoned coal town is a beautiful, haunting cemetery.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

An abandoned saucer-shaped monument in the Bulgarian mountains.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

Perched atop the highest hill in Cartagena, this 17th-century convent offers spectacular views of the city.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

Part of a secret 1970s nuclear defense program is now open to the public.