In the new version of 1x you can make your own HD-slideshows very easily by just adding photos in the toolbar when you are logged in. In "Photos" > "Playlists" you can check out especially featured playlists as well as the most popular ones. You can also follow your favorite playlists by others.
The most popular playlists right now are "Faces", with close up portraits, "Landscapes" with mind-blowing high resolution landscape photos and the intriguing "Colorful black and white". Just click one of the links and hit play, lean back and enjoy!
Latest photos from "Faces":