One of the oldest and largest arts organization in the country solely devoted to contemporary art, MoMA PS1 offers innovative exhibitions. It has been a who's who of the most important working artists today, and is directly involved with the artists it showcases. Every summer on Saturdays, P.S. 1 features "Warm Up," which brings together music and visual arts with performances by DJs and live bands, allowing people to dance an relax. Closed Tues. & Wed. $10.