Founder of 360cities, Photographer Jeffrey Martin recently shot the worlds largest indoor photograph with a Canon T2i/550D; 2,947 separate photos, 111 hours to stitch and 20 hours to Photoshop!
The Photograph is of an 18th-century baroque library in the Strahov Monastery in Prague, Czech Republic and is an amazing 40 gigapixels!
via PetaPixel