Just a block off Main Street, this large three-level, post-and-beam mansion at 24.5 Union Street is situated in the center of historic downtown Nantucket. A big, well-lit living and dining area with high ceilings is accessible through the front entrance. There is enough room in this area for a home-cooked supper at the six-person dining table or cocktails in front of the fireplace. The kitchen, wh  + View more