A formerly abandoned mental institute, now back in business.

A historic lighthouse steeped in rumors of ghost and pirate stories.

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.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

This legendary urban waterfall creates a dazzling display of rainbows.

In 2018, Pohoiki Road was severed by lava flowing from the eruption of Kilauea.

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

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.

One of the oldest temples in Ho Chi Minh City, dedicated to a deified Chinese military leader.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

This unusual lava tube spouts seawater during high surf.

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

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

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

Get up close and personal with these majestic fish.

An early-19th-century hotel with a past that is steeped in the Civil War.

A statue honoring 44 continuous years of greeting passing ships.

This kitschy tavern is also home to rare early editions of "Treasure Island."

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

Mysterious stone tower featured in many alternative histories of the New World.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.