Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

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

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

Yo, Adrian!

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

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

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

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

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

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.