This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

A Gothic gym and community space that encourages fitness for misfits.

There aren't too many operational funiculars around, but Pittsburgh has two!

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

A bedazzled house and crown "jewel" of outsider artist Loy Allen Bowlin.

A museum celebrating the self-taught artist-environment builder.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

Chicago’s last original drive-in restaurant is a family-run hot dog joint that started in 1948.

This old-fashioned confectionary has been family owned and operated for more than a century.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

Orthodox church partially financed by Tsar Nicolas II.

A hot dog stand where the heads are just as hot as the dogs.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

Ever wanted to can Spam?

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

This museum is dedicated to a Hollywood icon.

Find out what it sounds like when doves cry at Prince's recording studio estate turned museum.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.