Tianxin Pavilion is the tallest building in the old city. It has become the symbol of Changsha City by its height, and it has also become a place for soldiers to contend for. Tianxin Pavilion, formerly a watershed outside the city, is now in a busy city. You can imagine how fast Changsha City has developed these years. The name Tianxin Pavilion is said to be derived from the theory of astrology, just like Changsha's.