Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

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

A rare view of a preserved Victorian science museum.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

One of the oldest of its kind.

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

These medicine cabinet staples are part of the museum's collection of everyday objects.

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

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

Step into a pastel time capsule where candy is truly dandy.

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

World's first "penitentiary," meant to be humane, drove men insane.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

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

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

In the early 1800s, surgery was also a show.

A layered tribute to the work of mosaicist Isaiah Zagar.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

This beloved marketplace mascot poops money and grants good luck.