beautiful city europe houses landscape nature outside picture prague sky summer trees urban yown adriatic bay croatia Fiume harbour Kvarner panorama panoramic port Rijeka toruism town view apartments architecture block blue homes madrid modern skyscraper Spain spanish tower white house old town pavement sightseeing walk walking wall walls window sill ancient building Copenhagen Denmark historical home Kobenhavn old street berlin City Hall DDR germany guildhall lamp light night red town hall bougainvillea bush flowers Israel Jerusalem Nyctaginaceae pink plant purple shrub