The Lighthouse of Alexandria, also known as the Pharos of Alexandria, was an ancient wonder located on the small island of Pharos in Alexandria, Egypt. Built during the reign of Ptolemy II around 280 BC, it stood approximately 100 meters tall and served as a guiding beacon for sailors navigating the busy harbor. Constructed from large blocks of light-colored stone, the lighthouse featured three distinct tiers: a square base, a middle octagonal section, and a circular top. A statue of Zeus or Poseidon crowned the structure, which was one of the tallest man-made structures in the ancient world until it was eventually destroyed by earthquakes between the 12th and 15th centuries.