Here I made a little compilation of images showing how a super-wide angle lens can distort buildings, poles and all things surrounding depending on how the lens is tilted compared to the horizon. In the top view the lens and camera was looking or tilted up at the sky causing the liftbridge tower to lean in along with the telephone poles.
The middle view has the lens horizontal with almost no tilts.
The bottom image has the lens and camera pointing down at the water and causes the buildings to tilt outwards.
All of these artifacts can partially or entirely be edited out in post processing but it is better to try to get the correct angle at the time the photograph is made.
Click images for a larger view: