The JCC in Manhattan has a gorgeous building filled to the brim with things to do for people of all ages. From cooking classes to a health club (replete with olympic size pool) to meditation sessions to kids activities to Jewish study sessions, the JCC has it all. Workshops like "Exploring Jewish Mysticism and Practices" expose Jews to a side of the religion that many do not know exists. They have programming for gays and lesbians as well as lots of stuff for straight singles to latch onto. They also have plenty of family events and services.