Think beyond the art museum: Natural history museums, city museums, air and space museums, and even children's museums often have spaces to rent after hours. You'll probably have an exhibit as your backdrop (like an awesome dinosaur skeleton), which is the perfect talking point for your guests.
Tip: If you're interested in getting married at a museum, ask whether the staff can provide guided tours for your guests during cocktail hour.
Above: Fernbank Museum of Natural History in Atlanta
Photo: Scobey Photography