Google Images Flowers Wallpaper 2560×1600 for android 4. Merry Christmas is celebrated every year to commemorate the birth of Jesus Christ. It is celebrated around the world with decorative trees and well-lit streets. It is the most awaited festival of the year. If you want to gift your near and dear one with Merry Christmas wallpapers in HD, look no further as we are here to provide you with the best ones.