It is almost the size of a football field. of course it was done by a German and it a panorama of Dresden, Germany. The site allows you to click on individual shots, like a statue, and the camera zooms in to show the detail. LINK
Fascinating statistics: It was taken with a 400 mm lens camera and is a composite of 1,665 photos each about 21 megapixels in size. A robotic stand was used to capture the city in a rotation that took 172 minutes to complete. A computer with 4 terabytes of hard disk space took 94 hours combine the individual photos together. Not sure why anyone would want to do such a thing, except for posterity or just so I might have something to share with you.