The Searles Castle is a French chateau-style castle-style house in Great Barrington, Massachusetts. Built in the 1880s, the romantically imagined structure has seven stories and includes a "dungeon" basement. The castle was initially designed by Stanford White of McKim, Mead and White, a famous New York architectural firm at the time. There are 40 room…The Searles Castle is a French chateau-style castle-style house in Great Barrington, Massachusetts. Built in the 1880s, the romantically imagined structure has seven stories and includes a "dungeon" basement. The castle was initially designed by Stanford White of McKim, Mead and White, a famous New York architectural firm at the time. There are 40 rooms containing 54,246 square feet of floor space, as well as 36 fireplaces.