The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

This replica of the Greek structure is in the heart of Nashville.

A mysterious castle built as a monument to lost love.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

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

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

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

The oldest farmer's market in America is so ancient it was approved by the King of England.

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

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

A layered tribute to the work of mosaicist Isaiah Zagar.

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