For today's Geo Quiz --- we're going to introduce you to a Canadian filmmaker. Rob Spence plans to make a documentary about his hometown in Ontario.

Actually it's a city, the fifth largest in North America, with a population of about 2.5 million. It's located in a region called the Golden Horseshoe as it wraps around Lake Ontario.

But it's the way that Rob Spence plans to film his hometown that's captured our attention. He'll use a camera that's implanted in his prosthetic eye:

"The camera that I put into my bionic eye will move around the same way that my normal eye moves around, so glancing to the side, blinking, sometimes looking at inappropriate things, these are things you have to think about when your eye becomes a camera."

So smile, look straight into his eye, and name the city sometimes called Canada's global city.