Architectural photography is an art in itself. Done correctly requires the use of a special "tilt/shift
lens that many photography have no knowledge of. Their buildings in their photos they ares leaning over. WIth our lens' and expertise, the walls of the building are straight and parallel.
Why is this necessary?
When a typical wide-angle lens is used on a building, the photographer aims the lens straight. The walls are straight, but the top of the building will be lost. When you aim upward to capture the top, the walls become distorted. The Shift lens allows the photographer the best of both worlds-- to aim straight and have parallel walls and physically move the lens up or down to bring the top of the building into view.
Very clever, but this technique has been available almost since photography was invented. Unfortunately, many photographers are clueless.