What is the Photos folder for?
The Photos folder is a way for you to easily create online photo galleries. Each subfolder of images within the Photos folder is turned into its own photo gallery. After logging into your online Dropbox, enter the Photos folder and click the Gallery view button. Click on an album to view that photo gallery and see its public link, which you can distribute to family and friends so that they can easily view the gallery as well. See https://www.dropbox.com/help/18 for details.