Seven ceramic sculptures are scattered around this California college campus.

This memorial to the Mercury Seven astronaut stands at the site of his former elementary school.

The chiseled jaw of this forgotten American hero still stands tall in a small Indiana town.

A chapel built by Italian POWs during World War II tells a forgotten tale of the war on the home front.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

A giant ball made from pieces of an old Jeep.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

At 207 feet, one of the world's longest continuous escalators.

The "lovely red Vega" of the legendary record-settling pilot.

An overlooked memorial honoring the local Washington residents who died in World War I.

There’s a hidden military meme engraved on the World War II Memorial.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

One of only two commuter aerial tramways in the United States.

Elevated freight railway turned wildly successful urban park.

A crumbling hospital from the 1850s on Roosevelt Island.

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

Oakland's beautiful monumental cemetery.