luxembourg downtown and park

architectural architecture attraction attractive autumn blue building capital city cityscape civil clouds cloudscape cloudy color colored colorful colour colourful colours construct constructed construction day daytime destination downtown duchie duchy duchys europe european green hill historic historical history horizon horizontal imposing impressive landmark landscape large light lighted luxembourg masonry natural nature oldness outdoor outdoors outside panoramic peaceful perspective quiet saturated shine sightview sky skyline span spanning stone stones stunning sun sunny sunshine tourism touristic town tranquil tranquility tree trees vibrant warm