I figured I'd add this picture to give an idea of about how tall these building are. The buildings in Paris are relatively all the same height so in looking at a city scape one tends to assume that those roofs are the ground. They're not, they are actually about ten stories up. I am sure to go back to Montmartre to get more pictures, when I get home everyone should plan at least six hours to see them all, and the video I will take as well. Be sure to bring a pillow and a drool cup because it is sure to only be interesting for five of those hours.