Editor's note: The renowned American poet Ezra Pound said that “All great art is born of the metropolis.” To that we would add that a great metropolis like New York, Tokyo, Moscow or Paris is art in and of itself: a vibrant, ever-changing work of art, buzzing with the millions of inhabitants who are its creators. We think you’ll love this museum-worthy wallpaper collection; find the cities you’ve been to and the ones that are still on your bucket list!