I only have three days to show my BF the sightsWhat is a can't miss for each day? Notre DameSacre CouerEiffel tower (better at night or day - i've only been at night)Illuminations tour - worth it? Catacombs or not? We have to go fast and we love photography, so want to sort of stroll about and get the flavor, while making sure he sees the famous stuff like Arc d'TriompheAny super cute neighborhood for strolling and cafes? We are not shoppers and not interested in 5-star diningThanks
