Berlin Alexanderplatz History Tiles
In a seemingly forgotten corner of the Berlin Alexanderplatz pedestrian tunnel there is a nice set of tiles giving the history of the square. They end in 1968, since that was clearly the peak of progress (and presumably when the tunnel was built). It's interesting to see them now, as they present an implicit historical narrative that culminates with the technological triumph of Communism (and, I would say, Enlightenment Rationalism, since that's roughly the period covered by the tiles), and then to look back at what's happened to the plaza in the 37 years since the tiles were installed.
And here's the tunnel they're mounted in:
(my apologies about the bad image quality, it's dark in the tunnel and using a flash wiped out much of the detail)