Completed concentrations of undergraduates by area are Social Sciences (42%), Humanities (26%), Life Sciences (17%), and the Physical Sciences (14%). Brown's main campus is located on College Hill on the East Side of Providence. Several of the buildings on the Brown campus from its founding 18th century period through the 20th century offer fine representation of the Georgian style of American colonial era architecture. The university's 37 varsity athletic teams are known as the Brown Bears. The school colors are seal brown, cardinal red, and white. Brown's mascot is the bear, which dates back to 1904. The costumed mascot named "Bruno" frequently makes appearances at athletic games. People associated with the University are known as Brunonians.