Seen here are riot police on the weekend of the G20 Summit hosted by Toronto (June, 2010). I was there to catch all the action on my camera. I must say, it was a once-in-a-lifetime experience. Seoul, Korea hosted the Summit of the G20 nations on Nov 11-12.
Why once-in-a-lifetime experience? Because the G20 is anti-tourism. Nobody goes to a city that is hosting the G20 Summit. Toronto was a ghost town during the G20.