Submerged lava formations create incredible waterworks.

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

This former luxury resort in Kaua'i is now an abandoned relic.

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

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

A true treehouse near Hawai'i Volcanoes National Park.

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

The 953 windows undoubtedly make this the world's most beautiful screened porch.

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.

Race through the maze, get your name on the sign.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

An old spiral fire escape dangles above a public courtyard in Midtown Oklahoma City.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

The Sun King's military models, saved from the Louvre.

Located near Cairo's El Korba district, the abandoned mansion continues to inspire mystery and rumor throughout the city.

Mount Nyiragongo has erupted at least 34 times since 1882 and is home to the world's largest lava lake.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

Deadly scalding and one of the largest hot springs in the world.

The Twisted Trees of Alticane are an unnerving grove of Quaking Aspen, apparently mutated from a single source, giving them a twisted and unnatural appearance.

These hellish-looking cliffs in the Canadian Arctic have been burning for centuries.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.