I went to CN Tower today. This is recognized as one of the seven wonders of the modern world.
It was a cool experience – the elevator takes 58 seconds to reach 346m! But of course if you stand without a support, one might get dizzy. The view from the top is spectacular – though one happen to see only sea of snow.
There is a glass floor here. Completely safe. Apparently it can hold 14 large hippos. I was only one! See some of the photos from the Albums (navigation at the top corner of the page)