does a big pile of rocks that used to be a temple count?

Wikipedia says this temple was built around 480 BC. Honestly, I have no idea if this is the oldest thing I've seen, because I had the incredible experience of traveling around Europe when I was a Junior in college, and visited Rome, Naples, Florence, etc., etc., so there's a good chance I saw some older buildings. This is the one that sprung to mind, though, just because I remember being impressed with the age of the place when I was there. One of those times when you feel a bit like a speck of dust in a vast unknown universe, to be quite honest.