DIY stacked wood fireplace facade -- I actually really love this idea even if you don't have a fireplace to begin with. It'd be so simple to zazz-up a brick or stone wall with a faux fireplace to create a gorgeous feature wall.
Industrial and Poetic Dining room, brick wall. Arts and Crafts House in South London. The Room Edit
Stripped floor boards, white mantle, open shelves and grey walls. Farrow&Ball (Elephant's Breath & Charlston Grey): gray walls with white trim and white shelves