Four-story concrete hotel never opened to customers.

Birthplace of America's first documented serial killer.

Annual celebration commemorating the 1965 sighting of strange lights in the town.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

Even Henry David Thoreau found this glacial pothole irresistible.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

A gas station and a state sign commemorating the most famous claims of extraterrestrial abduction.

Marta Becket's hand-painted theater in the desert.

Peek inside this sandy mailbox and you'll spot kids' letters to Santa.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

Home to the Titanic Historical Society's collection.

The remains of a hospital ravaged by fire, once a progressive place of innovations for disabled children.

This New York estate was designed to resemble a medieval Scottish castle.

A Medieval Water Tower in the Heart of Massachusetts.

The only remaining place where you can play this century-old game for cash.

The history of sea-faring refuse and disaster is on cramped display in this Netherlands folk museum.

Site of the creepy house used in Lucio Fulci's "The House by the Cemetery."

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

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

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

This church carved into the rocks is full of enchanting stone statues.

This marvelous work of outsider architecture is built into the cliffs of an Israeli beach.