This is eery and beautiful.
From the video page:
"This time-lapse was inspired by the “Empty America Series” by Ross Ching and the Nibiran jungle scene in Star Trek Into Darkness. When I first saw the scene in Star Trek, it made me wonder how color infrared would look if we could see it with our own eyes, unaided by IR filters. After seeing the movie and watching Ross’s series I thought about how a totally empty city (such as Philadelphia) would look in Kodak EIR style infrared.
All scenes were shot around Philadelphia using my full-spectrum digital camera and a yellow filter. A full spectrum camera is a camera that has had it's IR blocking filter removed, allowing the camera to see into the infrared. The yellow filter blocks all visible light up to yellow and allows infrared to pass through."