In 1911, a Swedish film production company shot a bunch of footage on the streets of a bustling New York City. A few years ago, Guy Jones uploaded the footage to YouTube (slightly slowed down to natural speed) and it went viral.
And now Denis Shiryaev — who recently upscaled the famous "Arrival of a train at La Ciotat" — has colorized the footage and upscaled it to 60 FPS and 4K resolution using neural networks. Here's the original footage:
And here's Shiryaev's upscaled and colorized version — so smooth it looks like it could have been filmed last year (except for, well, all the clothes and old cars):