
Rostock is the largest city in the north German state Mecklenburg-Vorpommern. Rostock is located on the Warnow river; the quarter of Warnemünde 12 km north of the city centre lies directly on the coast of the Baltic Sea.
In Rostock's long history, the city carried three different coat of arms known as the Signum, Secretum and Sigillum. The Signum, which can be traced back to 1367, was developed last and is to this modern day the coat of arms of the city. The flag depicts a golden griffin on blue background as well as the colours of the Hanseatic League, silver and red. The coat of arms can not only be seen on flags, houses and bus stops, but also on bridges, gullies, fences, ships and restaurants.