The greenhouse at the St. Peter State Hospital (St. Peter, Minnesota), ca. 1925.

The main administration building at St. Peter State Hospital, ca. 1920.

The ADI (Asylum for the Dangerously Insane) at St. Peter State Hospital (St. Peter, Minnesota), 1917.

The Detention Building at St. Peter State Hospital (St. Peter, Minnesota), ca. 1910.

Corridor inside St. Peter State Hospital (St. Peter, Minnesota), ca. 1910.

St. Peter State Hospital, ca. 1905 (St. Peter, Minnesota), ca. 1905.

Postcard depicting the Minnesota State Hospital for the Insane, St. Peter, 1874. The institution was renamed St. Peter State Hospital in 1893. Public domain.

Minnesota State Hospital for the Insane in St. Peter, ca. 1868. The institution was renamed St. Peter State Hospital in 1893.

Minnesota State Hospital for the Insane in St. Peter, 1867. The institution was renamed St. Peter State Hospital in 1893.

Metropolitan Stadium (Bloomington, Minnesota) during a performance by the Beatles, August 21, 1965. Photograph by the St. Paul Dispatch–Pioneer Press.