USS John F. Kennedy with the Philadelphia skyline by Philly SkyGuy, on Flickr
Philadelphia skyline by Philly SkyGuy, on Flickr
The recently restored lighting on the Pyramid Club level of BNY Mellon Center has a “breathing” animation that lasts for a while. I presume for the safety of the birds (no, not the Eagles)

And 1650 Arch Street on the left
Philadelphia skyline by Philly SkyGuy, on Flickr
Philadelphia skyline by Philly SkyGuy, on Flickr
I haven’t been there but I know EXACTLY where you took those
Lol I hope you never need to go there…