Jeffrey from 360 Cities sez, "My latest 'gigantic panorama' is of my adopted home city, Prague. (previously: 1 2) This time I'm trying something new: download, share, remix this one yourself! It is Creative Commons, attribution, noncommercial sharealike licensed. Here is the torrent link. It's 3.9GB of JPEG tiles plus an HTML5 and Flash viewer. This image was shot in May 2013, and the total size of the image is 260,000 x 130,000 pixels. That would be 44 meters long if you printed it at 150DPI!"

Prague 34 Gigapixel Panorama Photo (Thanks, Jeffrey!)