This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

This hidden bridge is where local children leave gifts and messages for the island's fay folk.

This cascade of mineral-rich hot springs and waterfalls is an oasis in the Jordanian desert.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

Erosion and time have created a naturally-formed water park.

The world's first fully-fenced urban ecosanctuary is a haven for New Zealand's rare and endangered species.

Museum devoted to the artificial language of Esperanto.

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

An approximately 500 million-year-old rock outcropping covered in fossilized bacteria.

An outlet for connecting to memories of lost loved ones and saying goodbyes you never got to say.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

A charming Amazigh village carved into a mountaintop.

Red ocher pictographs survive in this tufa rock shelter on the shore of an ancient lake.

"All Mountains - All The Time."

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

One man's unrequited love stands in a glass box forever.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

No one knows why this family’s graves stayed on the national museum's premises after all other tombstones were relocated.

It takes a nine-mile hike to reach these hot springs, but weary hikers are rewarded with stunning views and a warm soak.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

This Alaskan town appoints the general store's resident feline as honorary mayor.

These 7,000-year-old cave paintings depict life in Neolithic Spain.

Dr Barnes' $25 billion private collection of art and arboretum.