Just off Yonge St, south, west of King, you can find Commerce Court. Linger there, on a nice day and enjoy the sunshine and relative quiet in the downtown area. If it's a bright day, you'll be treated to one of the best special effects shows in town. Wander around the courtyard and look up - you'll see a variety of visual effects going on. Commerce Court is surrounded by shiney, reflective skyscrappers that offer up a variety of shots to capture. One of my favourite effects is the mirrored buildings:
It's an impressive rippled mirror effect. Like a living mural, constantly changing with the sun. Don't forget to look a little lower. Buildings to the north create a neat white patterned effect on the shorter concrete buildings. Enjoy.