The photographer Michael Weseley did a number of long exposures (>12mths iirc) of Berlin during the 1990s as it was being transformed after the fall of the Wall and subsequent reunification. Viewed as huge prints in a gallery they were impressively detailed, as layers of various rebuilding and urban planning projects were revealed in varying degrees of transparency, depending on how long they took and how recent they were:

eg https://www.uncubemagazine.com/blog/14374185