Whether at the peak of summer or in the moodiness of a winter’s night, nothing elicits a chorus of oohs and ahs from locals like a leisurely after-dinner stroll across the city’s iconic bridges and along the banks of the river. Amble across the Pont des Arts toward the Institut de France and continue along the docks of the river, watching the Bâteaux Mouches illuminate the Seine with their lights as they glide by. Keep wandering until you reach a spot to pause for an unobstructed view of a twinkling Eiffel Tower (every hour, on the hour, after sundown). It’s free and absolutely stunning at all times of year.