: Art lovers with holiday time on their hands will get one more chance to view an extraordinary National Gallery of Art exhibit of paintings by Johannes Vermeer, thanks to private funding announced Tuesday. Only the Vermeer exhibit, two shops and the museum cafe will be open through Jan. 3. The exhibit cannot be extended to account for the government shutdown, since it has to close Feb. 11 to travel to The Hague. The exhibit has attracted an average of 4,100 people a day. Earlier Tuesday, the Smithsonian announced that it has tapped spare cash in its trust funds to reopen the American Museum of History.