Places esftripod Wants to Go

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

Pittsburgh's literal underground railroad.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

Where the "World Pinball Champion” is crowned.

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

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

This public space is speckled with the eerie remnants of a defunct amusement park.

This dramatic rail curve was once the target of a failed Nazi attack.

The first American axe throwing club.

This secluded walking trail is a hidden gem of a Pittsburgh park.

The graffitied ruins stand hidden within the Pennsylvania woods.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

A local prank turned town icon.

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

The ruined remains of a coal mining ghost town are hidden within the woods.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

These disused steel furnaces are now haunting ruins that may one day be a national park.