This subway map used in West Berlin appears to show the city's transit network as one contiguous system:
Only by reading the small print could travellers find out that the eastern stations were "only accessible by the BVG East and DR". There was actually only one train station in the city where you could pass from east to west, and it was, as you'd expect, controlled by guards and checkpoints.
4. Eastern U-Bahn maps, meanwhile, fiddled geography to make it look like West Berlin didn't exist.
As with the geographical map above, East Berlin's U-Bahn map used a clever trick to miss out West Berlin altogether: it superimposed a map of the East German suburb of Potsdam, which lies further west, on top of West Berlin, and makes its lines part of a radial network with its centre at Alexanderplatz.
Image: Frank Jacobs’ Strange Maps.
5. After reunification, the Berlin Senate set up a commisison to change East Berlin's Soviet place names.
Around 80 streets were renamed in total. Leninallee became Landsberger Allee (wonder why they felt they should change that?). Otto Grotewohl Strasse, named after the East German prime minister, reverted back to Wilhelm Strasse, its original name
Streetwise Berlin Map - Laminated City Center Street Map of Berlin, Germany - Folding pocket size travel map with metro map including S-Bahn and U-Bahn
Book (Streetwise Maps)
You might also like: