St. Catherine and the Church of Alexandria and the old clock tower are not far from the school. It takes only five minutes to drive, which is the landmark of the Duma. Although the exterior is not gorgeous, the exterior walls of the old clock tower are all polished and polished by coral stone, and the historical thickness carried by it will give people a heavy feeling. The tour guide said that people living on the island will respect it very much, because these coral stones will accumulate a little bit for many years. After listening to the introduction, I went to see the building and I had a lot of awe.