A rajomon was a city gate built at the south end of Suzaku-oji Street (a main street) which ran north and south through the center of ancient jobo (grid-like arrangement of streets and avenues) cities such as Heijo-kyo or Heian-kyo.
羅城門（らじょうもん）は、古代、平城京や平安京といった条坊都市の中央を南北に貫いた朱雀大路の南端に構えられた門である。