Sanssouci is the summer palace of Frederick the Great, King of Prussia, in Potsdam, near Berlin. It is often counted among the German rivals of Versailles. While Sanssouci is in the more intimate Rococo style and is far smaller than its French Baroque counterpart, it too is notable for the numerous temples and follies in the park. Frederick invested heavily in a vain attempt to introduce a fountain system in Sanssouci Park, attempting to emulate the other great Baroque gardens of Europe. Hydraulics at this stage were still in their infancy, and despite the building of pumping houses and reservoirs, the fountains at Sanssouci remained silent and still for the next 100 years. The invention of the steam power solved the problems a century later, and thus the reservoir finally fulfilled its purpose.