A quirky collection of outsider art made from automobile parts.

A glittering Thai Buddhist temple in suburban Pennsylvania.

Locals call this magical moss-covered walkway the "Emerald Path."

Behold the rickety wooden glory of the world's oldest operating roller coaster.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

Pennsylvania's own Roswell-style UFO mystery.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

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

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

This park contains a number of standing stones meant to heal and inspire.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

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

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

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

This Old Testament garden features 100 plants from biblical times.

This might just be the TARDIS of bookstores.

The oldest surviving botanic garden in the United States.

A park full of outsider art, created by college students studying outsider art.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.