Columbia University [Students playing cards.]

Columbia University [Students playing cards.]

Columbia University [Students playing cards.]

Columbia University [Students playing cards.]

Columbia University [Students playing cards.]

Columbia University [Students playing cards.]

Columbia University [Students playing cards.]

Columbia University [Students playing cards.]

Columbia University [Students studying.]

Columbia University [Students studying.]

Columbia University [Students talking.]

Columbia University [Students in a bar,]

Columbia University [Students rehearsing a play.]

Columbia University [Students talking on a staircase.]

Columbia University [Students rehearsing a play.]

Columbia University [Students talking on a staircase.]

Columbia University [Students talking on a staircase.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]