architecture bridge Budapest clouds Danube dark day green liberty light night sky tram water freedom electric europe lisboa lisbon Portugal public rail railway streetcar tourism tourist traditional train transport tranvia travel urban vehicle yellow accommodation appartment blocks building buildingns bus contrast contrasting curved double-decker bus double-decker tram flats from above height high highrise highrise accommodation homes Hong Kong looking down modern multi-storey multi-story overpass pedestrian-overpass perspectives street street-scene tall tower towering traffic units vehicles views car commute railroad shuttle street car tramcar tramway trolley wagon passengers seat seats traveling way windows city communication commuter passenger transportation trolleybus wires