This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

Where one of America's greatest songwriters lived before he was Bob Dylan.

Nicknamed the "Grand Canyon of the North," this open-pit mine in Minnesota has a much shorter history.

Only the original archway remains from the building where a false cry of "fire" started a panic that claimed more than 70 lives on Christmas Eve in 1913.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

A relic of the Cold War in Chicago.

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.

The final resting place of one of Thomas Jefferson's formerly enslaved sons.

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

Statue dedicated to the star of an old television show.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

A house and yard adorned with bizarre concrete sculptures in a Milwaukee suburb.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

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

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

Opulent downtown movie theater now houses cars as an indoor parking garage.

This small piece of Michigan is entirely surrounded by Ohio.

A 30-foot stack of piano keys memorializes one of the greatest keys players in jazz history.

This restaurant proudly displays bread signed by the 39th president.

The faint remains of a Polish news empire still linger.

Odd, decrepit fountain honors Chicago author who had mixed feelings about his hometown.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.