The city of Zürich lies in the heart of Europe and at the center of Switzerland, on the northern shores of Lake Zürich. The Schanzengraben, former military defense system, now offers an idyllic, green, marked with historical plaques promenade through the middle of the city from the train station to the lake. The promenade starts at the Gessner bridge and into the lower part near the water over wooden walkways and sandstone slabs, along the zigzag line of the former ski jump, passing the 1864 built Männerbadi to bulwark "to Katz" with the Old Botanical Garden . The proximity to the water produce a distinctive architectural design. The promenade leads finally to the lake outlet at Bürkliplatz.