Fort O'Brien
- Port Road
- Machiasport, ME 04654
Built in 1775 and located in Machiasport, Fort O’Brien was active during the Revolutionary War, the War of 1812, and the Civil War. It was destroyed twice by the British. The fort was built and destroyed three times in a 90-year period. (Photographs courtesy of Instagram users @michaelsales26 and @james_does_his_homework)