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 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 talking.]

Columbia University [Students talking.]

Columbia University [Students hugging.]

Columbia University [Students rehearsing a play.]

Columbia University [Group of students.]

Columbia University [Group of students.]

Columbia University [Group of students.]

Columbia University [Group of students.]

Columbia University [Group of students.]

Columbia University [Group of students.]