When I started to put this article together I knew two things were going to dominate the subject matter. Architecture and lighting / shadows. Properly photographed architecture is an art unto itself, doing so that showcases the unique aspects of a building, or portions of a building really takes your breath away. Same thing can be said about light and how shadows have a direct impact on it. Framing these photos it's hard to say if the photographers goal was to showcase geometric patterns as the primary focal point, but they sure did a great job of it.
Adobe Apple Canon Casio Cokin Fujifilm Hasselblad Holga Kenko Kodak Leica Lensbaby Lytro Mamiya Nikon Olympus Panasonic Pentax Phase One Polaroid Profoto Ricoh Samsung Samyang Sigma Singh-Ray Sony Tamron Tiffen Tokina Vivitar Yongnuo Zeiss Zenit