Aerial vertical drone perspective of the Baixa district with its iconic grid system leading to the Commerce Square and Tagus River, Lisbon, Portugal, Europe

aerial vertical drone perspective baixa district its iconic grid system leading commerce square tagus river lisbon portugal europe lisbon portugal aerial view cityscape rooftops red building city street architecture travel tourism europe urban panorama skyline landmark historical historic old town downtown urban life city life day sun sunny shadow light perspective drone high angle overhead above