Highland Lighthouse, Truro Massachusetts
Highland Light, built in 1857 is the successor to the first lighthouse built in 1797, and is the oldest and tallest lighthouse on Cape Cod. Up to 1931 it burned oil, now with electricity installed it burns a single 1000 watt bulb of 2500 candle power. The huge bulls eye lenses stretch this out. It can be seen for twenty miles under normal conditions.