The view from below - looking up. Straight up. Make us dizzy and strain our neck! Find the zen in your zenith! Ideally, the zenith should be at the center of the image, and the image shouldn't feel any weirder if you turned it upside down.
Please note, this should be the view itself, not a photo of someone looking up. Looking up into your hat or at the ceiling probably don't count either, unless there's enough perspective from the sides...
Make it straight up, not just looking up. Taking photos of sides of buildings is too easy, and a pool of such photos becomes boring very quickly. Point your camera straight up!
