This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

The nuns here cultivate silk to weave some of the finest scarves in the world.

This famous archeological mystery may be an ancient example of movable type.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

In the mid-20th century, a tamale-slinging juke joint attracted a diverse clientele in the Mississippi Delta.

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

A promotional sun clock on the site of San Francisco's great raceway.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A psychedelic labyrinth on the San Francisco bay.

In this roadside "community for the small," abandoned toys gain new lives.

The largest permanent Monopoly board makes one of the longest games even bigger.

This sprawling bookstore spans four floors and has more than a million books in stock.

A medieval castle in the middle of rural Texas.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

These aggressively sustainable art homes look like something out of 1970's science fiction.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

On the side of a remote mountain, a stone face bearing an inscription of mysterious origin.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

The most magnificent bottle house in a town strangely full of them.