From viewing old-world masterpieces in the Louvre, touring the collections at the Vatican, or learning about immigrant life at New York's Tenement Museum, a trip to a museum is for more than just a rainy day. Instead, experience cities' and nations' cultural heritages with all of the organization and none of the stress, finding the best options wherever you go with these travel guides, trip ideas, and articles from our writers and in-the-know locals.