Splendid Structures of New York City
/I have no affiliation with this product, but I saw this print of New York's most iconic buildings (illustrated to scale!) and I wanted to share it. Even if you cannot purchase it, if you have trouble telling the second-tier NYC skyscrapers apart, it's worth bookmarking the page to refer back to the image.
(PS: Want to do an New York icon crawl, and try hit as many of these in one tour as possible? That can be arranged.)