The Bell Tower, also known as the Swan Bells Belltower, is located on the banks of the Swan River in the heart of Perth, next to the Stirling Gardens. The bell tower was built in the millennium. Its left and right wings are like a pair of swan wings. It has a unique shape and has become one of Perth's landmarks. The tower top of the glass tower and steel pipe structure is 82 meters high. It collects 18 big clocks from all over the UK and forms a group. With the bells of the people playing different music, visitors can also experience the ringing of the clock. It is one of the largest group of bronze clocks in the world today and the only royal clock tower outside England. Figure 3 is , now, there is a concentric lock in the place where there is a tower? Look at the density of the lock to see the population density here. You go to the Seoul Tower to see, I accidentally knocked out a trip, but also reached the foot, flat and well sprinkled. Those locks have no place to squeeze! Look at the pointed strange object in the distance of Figure 4 is this clock tower.