Note: This page uses a Page List Block that looks for and displays "Gallery" type pages that have been published under Photo Galleries in the Sitemap. Start by placing photos into named Sets and or Folders in the File manager. Then sitemap add a new Gallery Page under to Photo Galleries. Optionally, you can include a page thumbnail and or description to those gallery pages. Then just configure the Gallery Block on your Gallery page to point at the desired Set or Folder and publish, it will show up here automatically.