The Lighthouse of Alexandria was built on the island of Pharos outside the harbour of Alexandria, Egypt c. 300 - 280 BCE, during the reigns of Ptolemy I and II. With a height of over 100 metres (330 ft), the lighthouse was so impressive that it made it onto the established list of the Seven Wonders of the Ancient World.
This is a companion discussion topic for the original content at https://www.worldhistory.org/Lighthouse_of_Alexandria/.