A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

This unique formation is characterized by hexagonal basalt rocks stacked in unique formations.

A physical reminder of Earth's ancient past, this rock results from the photosynthetic processes of some of the oldest forms of life.

Tucked away in a corner of a Maine general store there was a museum devoted to an equally beloved and reviled local soft drink.

Built in the 1970s, this curious modular home found new life as a sundae-shaped ice cream stand.

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

Try a classic Necco candy bar being resurrected in a small suburban shop.

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

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

Century-old shop, specializing in Occult products.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

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

One of Philadelphia's largest murals resides hidden under this bridge.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

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

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.

Where the "World Pinball Champion” is crowned.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

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

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

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

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

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.