The Shelton History Center at 70 Ripton Road, close to the Huntington Green, will be open Saturday, June 13 from noon-4 p.m. Visitors can check out six historic structures, including the Trap Falls one-room schoolhouse, take a guided tour or participate in activities at several stations. The event is free and open to the public. For information call 203-925-1803 or go to sheltonhistoricalsociety.org. Open House Day is an annual event where cultural organizations and tourism attractions throughout the state open their doors to Connecticut residents.