The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

A true treehouse near Hawai'i Volcanoes National Park.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

What remains of the summer palace of King Kamehameha III.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

A tunnel of hardened lava along Maui’s famous Road to Hana.

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

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

Hundreds of skulls and bones at the largest skeleton museum in the country.

Human skulls and a stuffed goat made into a rocking chair can be found at this strange little store.

Found: Garden of Eden in Miami-Dade County, Florida.

The strip club's VIP lounge is actually a rare repurposed Futuro House.

Decorative shell walls built in the 1940s sit atop an ancient midden created by the Calusa Native Americans.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

Wading through a small lagoon reveals a secret, wild stretch of pristine beach.

The futuristic test model of an iconoclastic visionary who wanted to redesign the world.

A Florida college boasts the world's largest single-site collection of structures designed by Frank Lloyd Wright.

The ruins of a creative scholar's fantastical unfinished sanctuary act as his massive gravestone.

America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

One of only two pod-shaped homes designed by Frank Lloyd Wright.

The largest retailer of seashells in the world.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.