Jeffrey Martin specializes in creating photos of cities, usually shot from the top of a tower or skyscraper. His gigapixel photos are usually 360º panorama pictures, created from thousands of individual photos that have been carefully stitched together. The result is an image so large that a full-size print would be the size of a house. Buildings and features up to 30km away can be seen in these images and when viewed online or interactively it is possible to zoom in to an incredible degree.