Columbia University [Students talking on a staircase.]

Columbia University [Students talking on a staircase.]

Columbia University [Students talking in a stairway.]

Columbia University [Students talking on a stairway.]

Columbia University [Students talking.]

Columbia University [Students talking.]

Columbia University [Students in a bar,]

Columbia University [Students talking in a stairway.]

Columbia University [Students in a dining hall.]

Columbia University [Medical students attending a lecture.]

Columbia University [Medical students attending a lecture.]

Columbia University [Medical students attending a lecture.]

Columbia University [Medical students attending a lecture.]

Columbia University [Medical students attending a lecture.]

Columbia University [Law students holding a mock trial.]

Columbia University [Law students holding a mock trial.]

Columbia University [Students talking.]

Columbia University [Professor talking to a student.]

Columbia University [Students talking in a stairway.]

Columbia University [Professor talking to a student.]