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

The ruins of a megalithic monument sit right in the garden of a luxurious Maltese resort.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

The Home and murder site of the witch of Rehmeyers Hollow.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

The first American department store, and home to the largest operating musical instrument in the world.

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

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

This church in Pittsburgh is home to the largest collection of religious relics in North America.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

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

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.