The technical tours on Saturday 18th September will feature Swiss landmarks at the interface between architecture and engineering, including works by Robert Maillart, Heinz Isler, Heinz Hossdorf, Christian Kerez and Santiago Calatrava. Each tour will be led by experts on the specific topic. The following table gives an overview of the four different tours. The prize of 30 CHF includes the transport during the tour as well as a simple lunch (sandwich). More details can be soon found in the corresponding sub-menu.