Douro river and the historic centre of Ribeira at sunset, Porto, Unesco World Heritage Site, Portugal, Europe

afterglow architecture atmosphere atmospheric boats boat bridges bridge buildings building centro historico cities city portraits city portrait city daylight daytime day dim douro dusky dusk europe evening light evening skies evening sky evenings evening famous place high angle shot high angle view high angle view historical historic center historic centre historic city center historic city centre historic holiday regions holiday region holiday resorts holiday resort houses house illuminations illumination lights light mood nobody no one no people old towns old town old place of interest porto portugal ribeira rivers river ships ship sights sight southern europe south europe tourist attractions tourist attraction townscape travel photography travel twilight twilight unesco world heritage sites unesco world heritage site urban environment urban vacation region vacation resort vessel