A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

This collection honors the iconic, and proudly American lighter that just won't quit.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

This heritage rail line meanders through Delaware’s Red Clay Valley.

This bell is one of the last remnants of the lost city of Triadelphia.

In which a local geological marvel becomes a quaint roadside attraction.

Beautiful views of the surrounding hills and birds of prey can be found at this sanctuary.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

A toxic ghost town sitting atop a massive coal fire.

This historic lighthouse was well known for the large number of women who served as its keeper.

A failed piece of Orientalism has become the proud symbol of a community.

First built around 1848, this bridge was destroyed by arson, but original timbers are included in the replacement.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

A comprehensive collection of toy and model trains, largely from the mid-20th century.

A huge railroad museum with over 100 pieces of rolling stock focusing on the railroad history of Pennsylvania.

This vintage short line in Amish country runs passenger steam train excursions and still hauls freight.

This extraordinary model train layout covers over 1,700 square feet, with multiple trains running simultaneously.

A local prank turned town icon.