The Round Church National Historic Landmark, 25 Round Church Rd., is a 16-sided polygon built 1812-13 as a place of worship for five different denominations. The building was renovated in 1981 and is now used for events, concerts, weddings and public gatherings.
Daily 10-4, mid-June through Labor Day and third week in Sept.-Columbus Day; Sat.-Sun. 10-4, Memorial Day to mid-June and day after Labor Day-third week in Sept. May be closed weekends for weddings. Phone ahead to confirm schedule.