Not only is it one of the most sophisticated fountains in the world, the Fountain of Rings is also the world's largest interactive fountain to incorporate the Olympic Rings symbol. Children of all ages play in the fountain and enjoy the synchronized water and music program where water dances to familiar tunes complete with sound and lighting effects. It's free to view the Fountain of Rings show, which plays four times a day, 365 days a year, at 12:30 p.m., 3:30 p.m., 6:30 p.m. and 9 p.m.