Centrally located on Manhattan's Upper East Side, the "Cos Club" is a full-service, private club serving its members and their guests, as well as members of reciprocal clubs in the U.S. and abroad. For over a century, the Club has been a gathering place where women of accomplishment enjoy each other's company and pursue their interest in arts and letters, and current events. The sun-drenched rooms and terraces of the ten-story Clubhouse provide members, their sponsored guests and reciprocal club members with a variety of venues in which to hold private events. Overnight accommodations are also available to members, their guests and members of affiliated clubs.