The image is a Split View of Paris, with the top half showing a black-and-white historical photo of a busy riverside parking area filled with cars, and the bottom half displaying a modern color image of the same location transformed into a pedestrian walkway, featuring people enjoying themselves.
https://s3.eu-central-2.wasabisys.com/mastodonworld/media_attachments/files/113/101/607/084/798/697/original/452c76c2d0df9a08.jpeg