Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

This shallow cave got its name from copious amount of human bones found inside.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

World's largest Christmas store.

Outside Grand Valley State University, you'll find a bench upon which many were said to have sat according to the fictional Kcymaerxthaere, waiting for a guide of time.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

On the shores of Lake Kalamazoo, a plaque marks a fictional event where an island nation ran aground.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

The only road through the heart of Glacier National Park.

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

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Home to the deepest rift anywhere on Earth.

This historic national park is covered in the stunning ruins of red rock pueblos.

Ancient pueblos built into the base of a natural canyon wall.

A 19th-century Baja cantina that many say is the birthplace of the margarita.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

A giant donut stands as a popular symbol of Los Angeles iconography.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.