The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This small, unassuming street is now a canvas for color and creativity.

This cast-iron canine is a beloved icon among the people of Johnstown and ice hockey fans everywhere.

This restored log building was one of the first toll booths for travelers along the Northern Turnpike.

An ode to filmmaker George A. Romero, who used the mall to film an iconic horror movie.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

The largest piece of cut lead crystal adorned a grave for 75 years and is now the shining star of a glass museum.

A private residence adorned with a gorgeous mural dedicated to the buzzing insect.

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.

Once used to screen films for theater owners to rent, this historic building is now a start up hub.

Despite being stolen multiple times, this civic electrician's street corner Snoopy won't be stopped.

A giant ball made from pieces of an old Jeep.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

This secluded walking trail is a hidden gem of a Pittsburgh park.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

Prehistoric animals decorate this popular outdoor park.

The world's longest known cave system.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

An abandoned town is hidden in Great Smoky Mountains National Park.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

Spectacular mineral formations fill these caves, which have been used for everything from smoking meat to stashing illicit liquor.