Feature
noun
1.a distinctive attribute or aspect of something.
“a well-appointed house with interesting decorative features” Oxford Dictionary
There are almost endless possibilities of what products and effects you can use to turn a simple wall into a stunning work of art and interesting focal point. You could use wallpaper, reclaimed timber, pressed metal, exposed brick, panelling, leather, etc, etc. Here are some amazing ones I found on Pinterest in my search for inspiration, I hope they inspire you in your own projects too :)
For more inspiration check out my boards on Pinterest (link on my homepage).