On a strip of land between Upper Genesee Lake and Duck Lake sits Gustave Pabst's mansion. Gustave, son of Capt. Frederick Pabst, who founded the Milwaukee brewery, joined the family business in 1890 and was president from 1904 until 1921. His estate in Summit was completed in 1928 for his retirement.
The mansion's 20,000 square feet of living space includes 12 bathrooms and more than 30 rooms. The two main floors have similar layouts: a central hall with servants' quarters in the east wing and residential rooms primarily in the west wing. The wood-paneled entry hall has two fireplaces, an elevator, and - once upon a time - a pipe organ. It's open to a second-floor gallery and skylight.
An elaborately carved plaster ceiling is the highlight of the living room, which is attached to the solarium, a three-season room with a marble floor, marble walls, and 14 French doors.
The dining room features a sculpture carved from a single piece of wood above the fireplace and a secret button in the floor that Mrs. Pabst would use to summon servants. Adjacent is a smoking room with a built-in humidor. Another unique feature of the home is a hidden room in Mrs. Pabst's study accessed via a bookcase.
Gustave lived at the estate until his death in 1943, when the house and surrounding acres were sold to the Catholic order of Augustinian Fathers. Today, the home is on the National Register of Historic Places and is the private offices of Prader-Willi Homes of Oconomowoc (PWHO).