São Jorge Castle

São Jorge Castle is one of the oldest buildings in Lisbon and is the main historical monument and tourist attraction in Lisbon. The castle was built on the high point of the Alfama region and was the fortress when the Moors occupied Lisbon in the Middle Ages. Because it is located on a commanding hillside, it can be seen from almost every corner of Lisbon. The castle originally belonged to the earlier Visigoths. After the Moors invaded, it underwent a large-scale expansion. The 8-meter-thick city wall still makes people feel extraordinary. Here one can better appreciate the city's architectural art, whether it's the futuristic castle and drawbridge from Alfama to the city in the distance, or the open-air ruins of the Carmo church in the city.