architecture city coast defence defense fortifications Greece Greek harbor harbour historical homes houses mediterranean nafplio old sea town view algae beach cliff Great Britain green marine natural nature Pembrokeshire rockpools rocks sand seaweed united kingdom wales welsh home house village ancient clock Copenhagen crowded danish Denmark dense Kobenhavn scene spire suburb tower urban window aggressive alert Australian bird common gymnorhina tibicen insectivore lookout Magpie protective sharp sharp eyed swoop swooping territorial watchful watching cover covered metal open-sided paved paving pedestrians people posts ribbing roof roofing rounded shelter steel support walking walkway cutter cutting power danger disconnecting electric power electricity electricity power lines house wiring insulators power power pole strength wiring book book shelf candle fire flame instrument lamp light love music romantic shelf soft stick table violin warm wood