Weinheim (Bergstrasse) is a town in the north west of the state of Baden-Württemberg in Germany with 43 000 inhabitants, approximately 15 km north of Heidelberg and 10 km northeast of Mannheim. Together with these cities, it makes up the Rhine-Neckar triangle. It has the nickname "Zwei-Burgen-Stadt", or Two-Castle city, named after the two castles on the hill overlooking the town in the east on the edge of the Odenwald, the Windeck and the Wachenburg.