In this area:
–the Racquet and Tennis Club
–the University Club
–the Waldorf Astoria (known to have a connection to the train system, since FDR used it to hide his polio)
Related:
"The block of West 44th St. between Fifth and Sixth Avenues is called “Club Row” because it houses the Harvard Club, New York Yacht Club, the (former) City Club, the Coffee House social club, the St. Nicholas Society and the Penn Club. Also in the immediate area are The Yale Club, Princeton Club, Columbia University Club, Cornell Club, Brown University Club, etc., but the greatest concentration of clubs is on this particular block of 44th Street."