17th century classic houses houses street village 17th 17th of march 4 leaf clover Bishop card celebration clover eire four-leaveflover green invitation ireland irish march march17th national celebration national celebration day plant proud shamrock St Patrick's Day St Patricks day symbol 17th. century classic HDR kitchen old romantic style summer cityscape orange pavingstone yellow bricks embrasure fortification opening red wall Copenhagen defence door gate kastellet night port porté blue broken decay glas house sky wood