The first and the grandest of his Jewel-box bank buildings, Louis Sullivan‘s National Farmers Bank, in Owatonna MN, was opened in 1908. Boy, what a treat this building is. In the days before the US government insured bank accounts (FDIC),
Charnley-Persky House
Back in the early 1890s, when Louis Sullivan employed a certain Frank Lloyd Wright, they worked together to design the Charnley–Persky House. Sullivan primarily designed large commercial buildings, so this is one of his few houses. FLW designed a lot