Founded in 1630, Cambridge is well-known for its universities, museums, and historic homes. Alive with youthful energy, Harvard University and Massachusetts Institute of Technology have attracted an international array of restaurants, coffee shops, bookstores, and shopping arcades. Ethnically rich communities center around Cambridge's many squares - Harvard, Charles, Porter, Kendall, and Central. Harvard Square has a character all its own, lively until well after midnight, catering to more than 28,000 students from over 100 countries. Some 500 shops occupy this neighborhood. Street performers are on every corner offering songs, dramatic performances, juggling, and magic acts.