Canada's Wonderland, Toronto, Ontario, Canada.
What you see here is the most terrifying rollercoaster in the world. This thing is so big that one of Wonderland's original coasters runs beneath it - and is not even visible in this frame. The Leviathan, as it is called, is so large that it actually extends out into the parking lot. Whenever I drive by this monstrosity I pee in my pants a little.
However, if you're looking for an adrenaline rush and some of the best views over Toronto that money can buy, you're well served by strapping yourself into a seat and climbing to the top of the track. Wonderland is a Canadian institution in and of itself, and a fun day out for people not familiar with the city. Just make sure you get up nice and early for your visit - it can take an hour or more to make your way through a line for the busier rides, but that gives you plenty of time to chow down on funnel cake.