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

This blowhole is supposedly caused by a trapped monster.

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

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

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

A true treehouse near Hawai'i Volcanoes National Park.

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

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

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.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

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

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

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

This black shoreline is made up of exploded lava particles.

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

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

Rainwater transformed this old quarry into a peaceful pond you won't find in most tourist books.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

This abandoned five-star hotel is now a five-star urban exploration destination.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.

A college in rural Kansas founded to prepare the country for an impending World War III.