Columbia University [Three people talking.]
Columbia University [Students talking.]
Columbia University [Three professors talking.]
Columbia University [Two men talking.]
Columbia University [Students talking in a stairway.]
Columbia University [Two men talking at a party.]
Columbia University [Dwight Eisenhower talking to a group of people.]
Columbia University [Three professors talking in front of a chalkboard.]
Columbia University [Three professors talking in the front of a classroom.]
Columbia University [Three professors.]