Columbia University [Woman carrying large stack of books downstairs.]
Columbia University [Women carrying large stack of books down stairs.]
Columbia University [Woman carrying a large stack of books down stairs.]
Columbia University [Student carrying a stack of books down stairs.]
Columbia University [Women carrying a stack of books down a flight of stairs.]
Columbia University [Students talking on a staircase.]
Columbia University [Woman with a large stack of books walking down a flight of stairs.]
Columbia University [Student carrying books down a flight of stairs.]
Columbia University [Group of men at a table.]
Columbia University [Students in a bar,]
Columbia University [Professor teaching a class.]