Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

Almost half-way between the Equator and North Pole.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Large one-man sculpture park in Michigan.

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

Ever wanted to can Spam?

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A museum dedicated to the alleged Roswell Incident.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A Civil War Museum with some notable medical antiques.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

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

A bypass decorated with large wooden troll carvings.

This cave holds a surprisingly colorful variety of geological oddities.

A bizarre house filled with an astounding array of collections.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Home to the deepest rift anywhere on Earth.

Supposedly Satanic numbers adorn this preserved submarine sail.

This museum glorifies the humble potato.