The world is full of swimming holes, but few compare to Samoa’s idyllic To Sua ocean trench.

A desperate final message left by a POW on the run serves as a memorial for himself and the 97 that died with him.

Amelia Earhart's possible place of death.

A desert island with both a buried treasure and a famous castaway.

The ruins of a lighthouse on the island Amelia Earhart never reached.

An abandoned guano-mining city in the South Pacific.

A Japanese pilot crash-landed on this Hawaiian island after the Pearl Harbor attack and terrorized locals for a week.

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

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

A Hawaiian stairway to heaven—that you can't climb.

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

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

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

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

The famous aviator's final resting place is a study in natural beauty.

Watch the newest land on the planet form before your eyes.

This black shoreline is made up of exploded lava particles.

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.

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

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

The spot where the namesake of the Douglas fir met his mysterious end on a Hawaiian volcano.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.

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

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