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.

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

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

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

This roadside attraction has been serving out its fair share of hearty folklore and chaos since 1858.

Tucked in the back of this amazing antique store is an important piece of medical history.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

A piece of outsider public art accompanied by a strange urban legend.