I love that there's a museum dedicated to American art, founded at a time when American artists were underappreciated. The exhibitions are curated with a broad but discerning eye, and the architecture is spectacular. In my experience it's typically much quieter than the obvious choices like the Met and the MoMA - although both are remarkable, there's something I love about the scale and style of the Whitney.
Founded and designed by Japanese-American artist Isamu Noguchi (1904–1988), The Isamu Noguchi Foundation and Garden Museum preserves the working atmosphere of the artist's former studio in New York.