1 - Boston Harbor, 1783 Boston, Massachusetts Erected on the location of the nation's very first lighthouse, the harbor site is the oldest in continuous service in the United States. The tower was raised to its present height of 89' in 1859.

2 - Cape Cod, 1798 Cape Cod, Massachusetts Also commonly known as Highland Lighthouse, the tower today stands 66' tall and rises a total of 183' above the water line. It was rebuilt from the original in 1833 and again in 1857.

3 - Minot's Ledge, 1860 Minots Ledge, Massachusetts The 89' dark gray, conical granite tower keeps vigil over the submerged rocks off the coast of Cohasset, MA. Its light flashes once, then four times, then three times thus dubbing it the I LOVE YOU light.