Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

The remains of a large iron mill that once stood in the remote woods of northern Maine.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

A century after his death, this covered bridge still calls to mind the plein air painter who loved it.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

This small piece of railroad history sits behind the parking lot of a chain grocery store.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

Wheels of chrome by the thousands adorn this California Historical Landmark.

Buffalo's abandoned concrete grain elevators are getting a second life.

A decaying building marks the site associated with Emmett Till's brutal 1955 murder, which helped sparking the civil rights movement.

Hidden deep within New Jersey Pine Barrens is a massive graffiti wonderland.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

A heartwarming message to those entering and departing Music City from above.