The light yellow ameoba-like splotch in the map of Philadelphia above represents the distance you’d be able to travel on public transit in 30 minutes.

The map, along with those of many other cities, was created by a website called Mapnificent that overlays transit data on Google Maps to show you how far you can travel in any given time, as the Atlantic Cities reported.

To compare Philadelphia’s 30-minute travel distance to those in 19 other cities, click here.