What drew me to this particular building part was the sunlight on it. I also liked the simplicity.
Also for the get pushed challenge this week I was challenged by Andrew-Bede Allsop to do an architectural photo with a long lens that illustrates its ability to capture detail of the building. For this I was using my Fujifilm X mount 100 - 400 mm lens. I have had this lens for probably about 7 years and really love it.
@allsop Andrew, here is a shot in response to your challenge. Even though my 100 to 400 is a big lens I do take it with me wherever I go - details are so good, I like it for birds, and for getting up close to stuff.