懐旧[kaikyuu] recalling the old days
旧ソ連[kyuusoren] former Soviet Union
旧悪[kyuuaku] past misdeeds
旧衣[kyuui] worn-out clothes
旧詠[kyuuei] ancient poems

旧怨[kyuuen] old grudge
旧縁[kyuuen] old relationship
旧恩[kyuuon] old favors
旧仮名遣[kyuukanazukai] former (i.e. before the post-WWII reforms) kana usage in writing the readings of kanji

移動図書館[idoutoshokan] mobile library
映画館[eigakan] movie theatre (theater)
開館[kaikan] opening a hall for that day's business (museum, library, such like buildings)
館娃[kanai] palace (in China built by Wu Dynasty King)
館員[kanin] personnel (of public building)

館長[kanchou] superintendent
記念館[kinenkan] memorial hall
迎賓館[geihinkan] reception hall (esp. for visiting state dignitaries)
県民会館[kenminkaikan] prefectural meeting hall