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

Life-size figures portray depot attendants, train crew, and passengers frozen in time at the oldest railroad station in Arkansas.

A chessmaster's dream destination.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

Where the author wrote her beloved "Little House" books.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Nestled in Onondaga State Park, over 100 canoes carefully stacked in a replica of the famous standing stones.

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

Step back in time at this 1950s display home, built to showcase once cutting-edge electric amenities.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

The famous greeting card maker owns a collection of paintings by the famed surrealist.

Curious cave that stays a cool 56 degrees all year long.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

A mysterious echo seems to defy the laws of acoustics.

An acoustic anomaly with a mysterious cause.

Local legend says that someone is buried in the trunk.

Symbolic attempt to overcome the issues of life.

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

This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

One believer transformed a local curiosity into proof of Vikings on the Great Plains.

Walk through row upon row of manicured miniature trees at the United States' largest bonsai nursery.

The history of funerals and funerary customs.