This is a fascinating video, consisting of a series of remastered prints from the early days of film, with scenes of downtown Paris from sometime in the 1890s or early 1900s. The speed was adjusted to make it more life-like, and the film was also colorized. Ambient sounds were added later. The films were taken by the Lumiere brothers, who more or less invented modern cinema — you can see the two of them at the end of the second-from-last clip, where they jump onto a moving sidewalk that was built for the World’s Fair in Paris in 1900.