Johnson's rambling estate, originally 47 acres , also includes 13 Modernist structures Johnson built, including the "Brick House" (1949–1950), which serves as a guest house, the pavilion (1962), Painting Gallery (1965), sculpture gallery (1970), the study (1980), the ghost house (1982), the Kirstein Tower (1985) (named for Johnson's friend Lincoln Kirstein) and the gate house ("Da Monsta", 1995). [