In 2000 , they were included by the Puerto Rican government in the National Register of Historic Properties of Puerto Rico .
In 1981 , the lighthouses of Puerto Rico were listed in the National Register of Historic Places .
In 2000 , lighthouses were included by the Puerto Rico   government in the National Register of Historic Properties of Puerto Rico .
In 1981 , the lighthouses of Puerto Rico were listed in the National Register of Historic Places .