This public park was the site of the largest civilian disaster of the Civil War.

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

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

An abandoned stretch of highway, deteriorating next to the operational one.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

An outlandish shoe shaped house built by an eccentric millionaire.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

A local prank turned town icon.

A toxic ghost town sitting atop a massive coal fire.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

The slate extracted from these Pennsylvania quarries was once hailed as the finest in the world.

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

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

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

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

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

An Irish Memorial commemorating those who perished due to potato blight.

One of the oldest of its kind.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."