 In terms of size and opulence, Aalto's own summer house, the so-called Experimental House, in Muuratsalo (1952–1953) fell between the traditions of middle-class splendor and modest rusticity, while its accompanying lakeside sauna, built from round logs, was a modern application of rustic construction.The 1960s witnessed more experimental summer house types, designed with the objective of serial production.The most noted of these was Matti Suuronen's Futuro House (1968) and Venturo House (1971), of which several were made and sold worldwide.