Philadelphia’s Rail Park is an effort by three dedicated Philadelphians to transform an unused rail line into a grand pubic space that connects Fairmount Park to the cultural spine of Philadelphia along the Parkway down to City Hall. The space begins at the far end of Pennsylvania Avenue near 28th Street near Lemon Hill. That’s where a rail line runs underneath a tunnel that heads toward City Hall. Could that tunnel be of one Philadelphia’s next great civic spaces?

(via What Would Rail Park Mean for Philadelphia? | NakedPhilly)