I discovered this rectangular, box-like UFO in a photo that I took of the sun setting one day outside my house. I was not trying to capture a photograph of a UFO. I thought the sunset was quite beautiful and I wanted to get a picture of it. So I took the picture on my tablet. Later, while zooming in on the sun in the distance, I discovered the mysterious object. I did not notice it at the time of taking the picture in my driveway.