An electrifying collection of gadgets and literature from the 16th through 20th centuries.

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

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

This blowhole is supposedly caused by a trapped monster.

This ancient Hawaiian henge may have been an early star chart.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

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

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

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

A unique set of caves that spits waves back out into the ocean.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

A 1940's shrine dedicated to drowned fishermen on the outskirts of Honolulu.

What remains of the summer palace of King Kamehameha III.

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

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

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

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

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

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

A controversial memorial at the place where Captain Cook met his violent end.

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

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.