Introduction to the Fortress Garden: There is a large open space on the Fortress, with green grass, towering ancient trees, and giant steel cannons standing next to it. The ancient tower on the fort was one of the Jesuit sites in the past, and it is in the center of the open space. A southern European-style bungalow building is now the office of the meteorological observatory. There is an ancient bell on the right side. It was made by a famous cannon-casting expert. It was moved to Portugal for installation. It was donated back to Macao by the Sisters a few years ago. The entrance to the fort The stone carvings on the top of the front door record the fort's record of resisting foreign enemies.