This ruined fort and statue are a testament to the last king of Kaua‘i’s savvy diplomacy skills, which briefly brought Russians to Hawai‘i.

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

A burial ground for workers at one of Hawai'i's largest sugarcane producers that laid buried for decades.

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

This blowhole is supposedly caused by a trapped monster.

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

A unique collection of Western and Japanese-style graves.

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.

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

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

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

Hidden behind a YMCA stands the remains of a ceremonial site that dates back hundreds of years, whose ground is still considered sacred to many Hawaiians.

What remains of the summer palace of King Kamehameha III.

This WWII plane died a quiet death, and is now a garden eel playground.

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

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

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

Ten acres of the Kula Forest Reserve make up this wonderous state park.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

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

An outsider art duo's yard has been turned into a whimsical public gallery.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

A statue of the owner stands outside of this museum, once the most popular brothel in town.