A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

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

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

A gigantic 10-foot tall stone man.

Teddy Roosevelt’s famous “midnight ride to the presidency" started at this small lake high up in the Adirondacks.

The summit Roosevelt conquered before he descended to become The Chief.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

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

These pretty kitties killed and ate as many as 135 railway workers.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.

A collection of the best toys ever made, The National Toy Hall of Fame is filled with kids, fun, and for some reason, a bird preserve.

This steamer is known as "The ship that built Cleveland."

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

Two mermen, eternally spitting into each other's mouths.

Why have you never heard of the second most popular tourist site in New York?

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

Charles Babbage's proto-computer, painstakingly brought to life.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

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