1. A method for outputting information comprising: photographing in a plurality of directions at each of a plurality of photographic locations a photographic region with a photographing device, obtaining a plurality of image data of the photographic region and storing in a memory, the plurality of image data of the photographic region at each of the plurality of photographic locations, the photographic region being divided into a plurality of sub-regions; correlating and storing in the memory photographic location data and photographic direction data at the time when the plurality of image data is obtained with each of the plurality of image data when storing each of the plurality of image data in the memory; specifying a photographed sub-region when the image data is obtained, by referencing the photographic location data and the photographic direction data correlated with image data stored in the memory; correlating and storing in a database the image data, the photographic location data and photographic direction data with the specified sub-region; specifying a plurality of locations arranged in order on a perspective route set above the photographic region and a direction of sight line towards the photographic region at each of the plurality of locations; referencing the photographic location data correlated with the sub-region stored in the database and reading out in order image data with searching the image data including the sub-region, the sub-region being located in the direction of sight line at each of the plurality of locations on the perspective route; and outputting the image data read out in order; wherein the photographic device includes a plurality of cameras pointing in a plurality of directions, the plurality of cameras simultaneously photograph at each of the plurality of photographic locations and the plurality of image data is obtained; and for each sub-region of the plurality of sub-regions, if a sub-region is photographed a plurality of times when seeing a plurality of photographic locations from an arbitrary geographical point in the sub-region, then an adjacent photographic location is included in a three dimensional angular range of 0.004 steradians or more and 0.54 steradians or less.