Visting mother in North Texas Feb 2012. Traveling on Stacy Rd. in Allen, Tx with mother to go shopping about 2pm. She is in her late 70s. I was driving. We noticed a bi-plane or crop duster flying unusually low over a building. We looked up in the sky and far above the plane was a huge (skyscraper sized or larger) large black, gunmetal cylinder craft like object at an angle just sitting above at least a mile from us in the sky. It was exciting to see it, but not scary. It almost felt natural to see it. I cannot explain it. I was driving and continued on. My mother was like "what is that?" I said it looked like a huge craft of some kind. We discussed that we should have pulled the car over and taken pictures with our cell phone, which we did not. When we got back to my mother's house, we drew pictures of what we saw. We wondered if the pilot of the bi-plane had seen it and if he/she were flying towards it for a better look.