Philadelphia has dozens of end-of-summer activities running now through Labor Day. Visit Philadelphia offers the following and more suggestions to make the most of these late summer days. Philly Festival HighlightsThe Philadelphia Chinese Lantern Festival will entertain crowds at Franklin Square (through Aug. 16). GRAMMY-winning singers and songwriters offer plenty of tunes to punctuate the last hurrahs of summer. Discover how historians put together the boat's story through on-site Table Saw Talks (Aug. 16 and Sept. 13).