4K HD Wallpaper: Dreams
"Dreams that are worth it, are always the most difficult to reach." Download the 4K picture if you like under CC By license from Marta's courtesy and set it on your desktop backgrounds and homescreen phones.
Widescreen Desktop / Macbook: 2560x1600 (fits on: 1920x1200, 1440x900, 1280x800)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x1536 (compatible with almost all tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many smartphones)