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

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

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

What remains of the summer palace of King Kamehameha III.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

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

Race through the maze, get your name on the sign.

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

This black shoreline is made up of exploded lava particles.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

Fascination continues to surround one of history's most infamous shipwrecks.

Memorial to the Titanic engineers that died working to hold back the sea.

A museum marks and documents the site of the Titanic's launch.

Home to the Titanic Historical Society's collection.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

Elevated freight railway turned wildly successful urban park.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.