Karlsruhe Palace (German: Karlsruher Schloss) was erected in 1715 by Margrave Charles III William of Baden-Durlach. It is now home to the main museum of the Badisches Landesmuseum Karlsruhe. The first building was constructed by Jakob Friedrich von Batzendorf. The city was planned with the tower of the palace (Schloss) at the centre and 32 streets radiating out from it like spokes on a wheel. Originally partially made of wood, the palace had to be rebuilt in 1746, using stone. Charles Frederick, Margrave of Baden-Durlach at the time, and who eventually became Charles Frederick, Grand Duke of Baden then had the palace altered by Balthasar Neumann and Friedrich von Kesslau until 1770. (wikipedia.org)