What building in Philly does the Cold Case Television show use as the police station with the walkway over the street and the huge covered entrance?

It's not a building in Philly, it's the Boylston Street frontage of the LA Center StudiOS in Los Angeles, the same studio used for Mad Men. The skywalk bridges, the Bonaventure Hotel and the Bank of America building give it away. Here it is on google maps: google.com/maps?q=34.054566,-118.259269&num=1&t=h&gl=us&z=19">https://maps.google.com/maps?q=34.054566,-118.259269&num=1&t=h&gl=us&z=19