Started in 1931 by philanthropist Gertrude Vanderbilt Whitney, the eponymous museum is still going strong. It's got paintings, sculptures, drawings, videos, photography and new media. Andy Warhol is probably the most well-known of the artists featured, but the collection includes other 20th century titans. It holds American flags by Jasper Johns, enlarged flowers by Georgia O’Keefe and paintings of everyday minutiae by Edward Hopper. These works, and indeed the whole collection, offer insights into the American psyche. In 2015 The Whitney moved into a new Downtown building designed by famed architect Renzo Piano. It now not only has more space than ever to showcase its massive art collection, it also offers fantastic views out onto New York, the city where American dreams are made (and dashed).