State of Berlin on Germany Map
This Map was taken from the official website of German government. The state of Berlin looks like an enclave in another state, Brandenburg, at the right side (east).
In terms of topography, Berlin is situated in the darker green flat North German plane. In the southern part of Germany, mountain ranges can be seen.
Brandenburg is borders eastern Poland. This fact has great significance in terms of tourism, because a trip to Berlin can be combined with a visit to one or more cities in Poland.