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 playing musical instruments.]

Columbia University [Students playing musical instruments.]

Columbia University [Students playing musical instruments.]

Columbia University [Students playing musical instruments.]

Columbia University [Students playing musical instruments.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students talking.]