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

These lush botanical gardens employ the most purrfect pest control force.

This might just be the TARDIS of bookstores.

A museum of anything and everything Stooge.

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

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.

Once on display alongside a giant Gumby, it’s as tall as a nine-story building when fully extended.

A beloved horticultural oasis on the grounds of a wealthy family's former estate.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

Home to an eclectic collection of over 200 vintage motorcycles, Americana, and some of the most extraordinary antiques from all around the world.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

Inside this 150-year-old barn turned antique shop is a vast array of items for curios hunters.

This roadside stand packs 300-plus varieties of tomatoes, from "Maiden's Fire" to "Kaleidoscopic Jewel."

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

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

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

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

Mysterious rocks that ring musically when struck.

It would take 35 firetrucks to fill this enormous glacial pothole.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

This jail which was in service for over a century is now open for curious visitors.

A field of nothing but boulders which resembles a giant's gravel driveway.

Intricate storybook scenes are tucked inside these shadow boxes, which are tucked inside a library in the Pocono Mountains.