Open since 1885, Keens is the only survivor of the Herald Square Theatre District. Priceless artifacts are spread over its two floors in three connected townhouses. From the world’s largest collection of clay pipes owned by such luminaries as Theodore Roosevelt, Babe Ruth, Liza Minnelli, Enrico Caruso and Gen. Douglas MacArthur; to the theater program Abraham Lincoln was holding when he was assassinated in 1865 and a handwritten copy of the Gettysburg Address, history abounds at this landmark chophouse. Women are welcome at this once, gentleman-only restaurant, where Lillie Langtry, a famous British actress and mistress of the King of England, took a stand for women’s rights when she sued to be served in 1905. This meat mecca is legendary for its mutton chop which is mature lamb and thus more flavorful than its younger counterpart. The mutton is cross-cut from the saddle so each chop has both loin and tenderloin on the bone. Accompanied by Yukon mash and vegetables, few diners have room for dessert.