A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

Statue dedicated to the star of an old television show.

The tunnel that runs beneath this former inn was once a hiding place for enslaved people seeking freedom.

More than 5,000 contemporary and "historic" mustards from around the world.

Three playfully immersive mini golf courses let you travel alongside your ball to the cup at this facility, which has been around since the 1950s.

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

A renowned Civil War veteran, this Bald eagle now presides over the Wisconsin State Assembly.

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

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

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

The arboretum whose marshy soil sucked up the dreams of housing developers.

A largely forgotten and touching neoclassical marble fountain overlooking a bear mound effigy.

Where experiments are conducted on all things wood.

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

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

Prolific outsider artist Sid Boyum's concrete sculptures add whimsy to Madison's Schenk-Atwood neighborhood.

Oversized statues are just the tip of this nostalgic Americana roadside attraction.