It seems like every 30 years or so, wallpaper [1] comes back into popularity in the design world. While wallpaper conjures images of floral-themed nightmares from our grandparents' basements for many of us, it has turned into a trendy design choice [2] that can make an impact on any room. With advancements in technology and more gorgeous designs than we could have ever imagined, wallpaper [3] might be the design element that's missing in your home. From creating an accent wall in your hallway or living room to completely covering the walls in your bedroom for a romantic look, these before and after photos show just how much wallpaper can change a room [4].