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

Once home to over 8,000 exiled Hawaiians suffering from Hansen's Disease.

Images chiseled into the basalt here date back an estimated 300 years.

This tiny Hawaiian island is slowly coming back to life after being bombed during naval training exercises.

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

Formerly a lovely white sand beach this Hawaiian stretch is now a trap for countless tons of trash.

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

A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

A true treehouse near Hawai'i Volcanoes National Park.

These ancient sacred grounds granted amnesty to those who managed to reach them.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.

This unusual lava tube spouts seawater during high surf.

This legendary urban waterfall creates a dazzling display of rainbows.

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

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

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

The mummified heart of Louis XVII, the lost dauphin of the French Revolution.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

The largest radio telescope in the world searches for extraterrestrial life from the remote limestone peaks of southern China.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

One of the five gates into the fortress of to Shaniwar Wada was renamed to commemorate the 10th Peshwa of the Maratha Empire.

The world's toughest modern Christian pilgrimage leads directly to the gates of Hell.

A fiery crater has been burning in the Karakum Desert since 1971.