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Photo: John Phelan, CC BY 3.0 via Wikimedia Commons
The Groton Inn is an inn at 128 Main Street in Groton, Massachusetts. Until 2011, it was an inn consisting of three historic structures, and was believed to be the oldest operating inn in the nation. The oldest structure was complete in 1678, making the inn the oldest in the United States. From 1797 until 1847 the inn served as a meeting place for St. Paul's Masonic Lodge, where Paul Revere was Grand Master. The building was added to the National Register of Historic Places in 1976. The inn was severely damaged by fire in August 2011. Attempts were made to save the front of the building, which was barely harmed compared to the rest of the structure, but the owners chose to demolish the inn in November 2011.
© OpenStreetMap contributors
Groton Historical Society
A 12.5-mile paved bike and walking path on the old Hollis branch of the Boston and Maine Railroad.The rail trail Starts in Ayer, MA and runs through the towns of Groton, Pepperell, and reaches its northern point in Nashua, NH.
Bancroft's castle
Built in 1906 and ruined in 1932, Bancroft's castle is an impressive structure with a tower and overgrown stone walls. Public access is free and unrestricted, although it can be hard to find parking on nice days. There are also some good views of the area from the top of Gibbet Hill. Note that despite how it looks on the map, you cannot drive directly to the castle; park on the north side of Lowell Rd. near the stone pillars that mark the trailhead, and there is a short but steep trail up to the castle.