base bridge Burrard canada coastline crossing gate girder hillside inlet lions span spar support suspension underneath underside vancouver water bird cold dundee gull metal panorama rail railway river scotland seagull sky snow stone Tay wall winter architecture blue bridges car cars cloud road skies water system wave waves bus cross estuary lorry sea transport travel van abstract city connection famous graphic gray green grey impressionism link painting scenery steel texture transit cables central clyde glasgow passenger pedestrian people steel.old suspend urban Victorian walk walkway