The coloring page of the Alexandrian lighthouse is truly a sight to behold. The white stone exterior of the lighthouse is striking against the surrounding landscape, and its cone-shaped roof gives it a distinct personality. I would recommend coloring it in a variety of light blues and grays. Make the top point white and use a light blue for the body. The windows should be accented with a light gray, and the door at the bottom could be a navy blue. Finally, the roof could be a mixture of both blue and gray, creating a beautiful gradient around the structure to enhance the overall appearance.