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

Home of the only civilian casualty at the Battle of Gettysburg.

The god of wine stares out at passersby on this busy Pittsburgh thoroughfare.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

A soon-to-be-forgotten roadside spectacle loaded with local lore.

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

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

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

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

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Amazing taxidermy dioramas from the 1960s in a cement building meant to look like an ice cave.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Railroad came. People came. Railroad left. Town died.

Enormous lake at the bottom of a unique cave system.