The Mary Seaton room is contained in a concert venue designed by this architect, the Kleinhans Music Hall in Buffalo, New York. This architect set out to design “the simplest skyscraper in New York City” for a building whose facade of dark granite piers led it to be nicknamed “The Black Rock.” The CBS Building was designed (15[1])by this architect whose Miller House is credited with popularizing the (15[1])conversation pit. A structure designed by this architect (-5[1])that was nicknamed (*) “the whale” for its sloping roof (10[1])is (10[1])the David S. Ingalls Rink at Yale. A flight center designed by this architect (10[2])is now the TWA Hotel (10[1])at JFK airport. This architect's improvements to the MIT campus include its chapel and the Kresge Auditorium. For 10 points, name this Finnish-American architect of the Gateway Arch. ■END■ (10[1])