Mile-long cave system near Great Smoky Mountains.

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

A medical facility that has been kept frozen in time.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

A town filled with hot chocolate, dazzling lights, and lots of Christmas cheer.

This solitary gravestone is separated from the rest in Appleton, explaining why local legends continue to surround it.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

Gambling, boozing, and yodeling animals cover the walls of this dive bar cum natural history museum.

Paranormal activity on the great lakes.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

Wisconsin's most celebrated export gets the royal treatment on I-94.

Vikings and Evangelicals have both had a hand in this replica medieval church.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

A trading post in the North Pole where children send letters.

Inside this casino, visitors are treated to slot machines and a rare German Christmas pyramid.

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

Nestled in an unassuming residential area, this "forbidden forest" is rumored to spirit away those who dare to enter.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

The oldest continuously-operating tavern in Wisconsin used a clever loophole to serve alcohol during Prohibition.

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.