Fine dining 20 feet below the surface in the Indian Ocean.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This twisty section of highway in the Himalayan foothills is lined with thousands of small mirrors.

A deeply beautiful 15th-century stepwell with a tragic story.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

It took 28 years to build this massive statue of the Hindu god Vishnu riding a mythical bird.

This wondrous hideaway is suspended in a bamboo forest above a sanctuary for rescued llamas and alpacas.

Often referred to as the largest spring in America.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

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

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

One New Hampshire alleyway has become home to a public gallery of feline art.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

The murals have transformed a residential alley into a vibrant drive-through gallery.

Mural fragments and various sculptures honor the longtime artist.

A man's home is his castle.

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

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

An open-air, roadside eatery celebrating a historic indigenous cuisine of complicated significance.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

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

It's believed Matilda Fitzwalter's life was the basis for the famed literary figure.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.