Built in the 1930s, the Martin Zech house near Sauk City, Wisconsin, is a two-story wood house with a cupola -
A columnist with the Wisconsin State Journal described its idiosyncratic style in April 1946:
“The Zech house is absolutely round … not octagonal … and the second story is somewhat smaller in circumferance than the first so that, from the distant road, it appears to be two fine cheeses of different sizes set one on top of the other. Inside the rooms are pie-shaped, except that the tip of each is cut off by a small round central hallway.”
“Mr. Zech built it that way, he said, simply because he liked it that way, and the idea was original with him.”
A recent photo shows it looking much the same.