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

This legendary urban waterfall creates a dazzling display of rainbows.

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

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

Football field-sized microalgae production tanks on the Hawaiian coast create a stunning view from space.

This unusual lava tube spouts seawater during high surf.

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

Inside, visitors are treated to the rich history of sugar farming and its impact on Hawaiian society.

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

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.

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

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

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

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

What remains of the summer palace of King Kamehameha III.

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