Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

Years of archaeology, just chillin' by the water cooler.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

This replica of the Greek structure is in the heart of Nashville.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

World's first "penitentiary," meant to be humane, drove men insane.

Four ionic columns from the Treasury Department building ended up in a park in Nebraska.

Twice a year, this road is closed off to allow for the migration of thousands of snakes, reptiles and amphibians between cliffs and a swamp.

Once known as the Illinois Asylum for the Incurable Insane.

This historic bridge has weathered fires and floods and still stands, now abandoned, where it has stood since 1874.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

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

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

This simple home was the beginning of a long journey for the iconic Western film star.

Away from the crowds of fishing enthusiasts, take a hike deep into the woods and journey into an eerie darkness.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.