Lighthouses enthrall many people, both young and old. They are tall, emposing structures, and they have existed for at least one thousand years. Most lighthouses that exist today have been constructed 100 years ago, as with the advent of new technologies they have not been put to use as much as they are needed to. Radar and sonar have driven the decline of the construction of lighthouses, but they still exist across bot the East and West Coasts of the United States and also the Western portions of Europe.
One of the oldest lighthouses in Europe that still survives today is Hook Lighthouse in Northern Ireland. It still works today, and its light has been used over the few hundred years since its constuction to guide boats toward safe harbor. The oldest known lighthouse was the Lighthouse of Alexandria, which was one of the 7 wonders of the anceint wold. It was destroyed by multiple earthquakes and the scavenging of its stones for building materials. During the Roman period and the conquest of most of Europe, they built many lighthouses that later fell into disuse by the medieval era, or were turned into makeshift castles. By the time of the LAte Middle Ages, lighthouses were used much mroe regularly, and by the 1700's with the discovery of the American continent were being built in full force across most of Europe and North America.