Located at the busy corner of Washington Street and Waltham Street, 46 Waltham Street is home to 80,000 sq ft of artists' studios, retail boutiques, commercial offices, a Citizens Bank branch and the new Burro Bar. Originally built as a factory for the Vose Piano Company, the structure is actually three buildings fused into one address and retains fascinating details from the Industrial Revolution, including ceiling-mounted steel fly-wheels for turning lathes and wax-melt sliding metal fire doors. Needless to say, these are lovingly preserved artifacts in a building fully renovated and adapted to today's uses.