Photographing architecture brings a whole new set of challenges to the camera work. You have aspects such as lighting, reflection, colour, verticals to name a few. Getting images which have a correct perspective ( correct verticals ) can be a little challenging, but technology helps us to correct these to a certain degree. Another great things about architecture, is by being a little creative with your camera settings like lowering the white balance to allow blues to shine through, using long exposure to drag the clouds. All in all, its great fun.