Portland Observatory
138 Congress Street
Portland, ME, 04101
Phone: 207-253-1800
Built in 1807 as a communications tower for Portland’s harbor, the Portland Observatory is a National Historic Landmark and the only remaining maritime signal station in the United States, The Observatory operated as a museum and historic site, offering educational programs and guided tours.
Hours: Memorial Day Weekend through Columbus Day, daily, 10 a.m.-5 p.m. Guided tours only; no unsupervised tours. Allow 45 minutes for the tour
207-774-5561.
Information: http://portlandlandmarks.org/observatory/