ith its ethereal light and isolation, few single places have had as much of an impact on American art and culture as Provincetown. You can get get a sense of just how much by visiting the Provincetown Art Association and Museum. The secret? It's free after 5 on Fridays. Founded in 1914, the museum has an unparalleled collection of the works of Edward Hopper, Robert Motherwell, Claes Oldenburg, William Merrit Chase, Mary Fassett, Andy Warhol, Joel Meyerowitz and many other Provincetown-connected artists. Hang out with the locals for these spirited free Fridays, which often coincide with the openings of new exhibits.