This park is home to well over 100 handmade birdhouses.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

Oldest building in California still in use.

What remains of the summer palace of King Kamehameha III.

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.

Hawai'i's oldest wooden house was shipped around Cape Horn from Boston in 1820.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

A unique collection of Western and Japanese-style graves.

Hiding in plane sight.

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

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

This World War II-era bunker is now packed with posters and props from movies and TV shows filmed nearby.

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

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

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

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

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

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