Here’s the aerial map law enforcement is using for the papal visit

The city’s mapping team is rolling out new aerial imagery of Philadelphia to help the Police Department and the Secret Service plan for the upcoming visit of Pope Francis.
It’s super high resolution, so you can zoom in much closer and get more detail than you on would on Google Maps, the city wrote in a blog post.
“The aerial imagery allows public safety teams to augment their situational awareness for planning, evaluation and for real-time responses,” the blog post states.
See the map
(Click “Basemap” and then “Imagery 2015 WMoF.”)
The new imagery is part of PHLMaps, the city’s mapping platform, which lets you see aerial photos of the city dating back to 1996. (Can someone make a timelapse of Center City please?)