Notwithstanding differences in appearance and construction, most American lighthouses shared several features: a light, living quarters and sometimes a bell (or later, a foghorn).

• 虽然美国的灯塔在外观和结构上存在一些差异，但它们确有些共同之处，比如都有灯标、有住房、有时还有钟(后来改用雾角)。