One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

Steepest flood safety railway in the entire world.

Memorializing an American tragedy of massive proportions.

This public space is speckled with the eerie remnants of a defunct amusement park.

A giant ball made from pieces of an old Jeep.

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

A bypass decorated with large wooden troll carvings.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

Comprised of Spanish war cannons, this sculpture once graced the bow of a WWI warship.

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

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

The murals have transformed a residential alley into a vibrant drive-through gallery.

A retrofuturistic art installation in the Pittsburgh Airport.

A hidden grotto on the grounds of the Kane County Government Center.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

The basement bowling alley of this St. Paul dive bar is decorated with thousands of dollar bills.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

From burial ground bocce ball court.

Sleepy Minneapolis block beats Guinness Record for most churches on one city block.

The Real LegoLand.