These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

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

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

The Kalamazoo factory has 100 years of instrument-making, and one big wartime secret.

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

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

World's largest Christmas store.

This railway-turned-greenway provides a pedestrian link in downtown Detroit and celebrates urban artwork.

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

An ever-evolving wall of graffiti art off East Liberty Street.

Trade in that pesky human soul for cold-hard circuits.

Unique Michigan homes look like something out of Tolkien's "The Lord of the Rings."

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

A Beaux-Arts triumph set to become Ford's innovation campus

One man's attempt to create an artistic wonder on a run-down block in Detroit.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

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

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.