detail of the tower and portal of the puerta de tierra wall that divides the medieval and modern areas of cádiz, spain

landmark tower building architecture facade church monastery temple tourism fortification monument town castle chapel ruins steeple detail portal puerta tierra wall that divides medieval modern areas cádiz spain civilization turrets doors earthen touristic kingdom coat arms espana defensive division outside military constitution square gate fort fortress exterior culture separation andalucia vacation defense stone outdoor urban famous historical historic entrance old extramuros andalusia cadiz spanish europe