There is a huge fountain in the middle of the square. Standing in the pool is a pillar about 40 meters high, composed of more than 80,000 pieces of glass, which gives out strange colors in the interweaving of sunlight and light. King Street, Queen Street and Swahili Street around the square are the busiest commercial areas in the city. The modern atmosphere here contrasts sharply with the ancient city. Under the square is a huge underground shopping mall and underground railway central station, known as "the longest underground art corridor in the world".