Bremen, Germany
From Geohashing
The Bremen graticule is at latitude 53, longitude 8. It contains most of the so-called Metropolregion Bremen/Oldenburg: the cities of Bremen, Oldenburg, Bremerhaven, Delmenhorst and Wilhelmshaven, as well as lots of farm land and water.
The northern border is at Cuxhaven and the North Sea. There's also a part of Schleswig-Holstein across river Elbe that belongs to this graticule as well.