bridge cathedral charles bridge citadel cross landmark red river riverbank roofs St Vitus angles appearances architectural architecture black box-like buildings business district CBD city city scapes city views colors colours concrete contemporary contrast contrasting distance distant elements exterior external glass heights high high rise light linear lines Melbourne modern office buildings perspectives reflections skyscrapers views walls wealth windows 'blue bird' blue flower blue mallow delightful colours. nature summer bush town garden autumn fall fruit garden green leaf leaves magnolia natural ornamental tree circles discs flower lily pads plants pond spring water arabic casbah dining ethnic gold. warm Middle Eastern moroccan morocco restaurant table building evening house houses Nyberg roof silhouette sun sunset tower