The top of a radiator can be the perfect place for a shelf. When a piece of wood or stone is placed on top, a bulky radiator becomes a handy side table or bookshelf. If you're using wood, just be aware that it might warp over time.
Crisp, clean, white makes small spaces seem bigger and brighter. I love how even the radiator is clean and white. Pair this with an awesome book shelve and it provides character to an otherwise boring room!