When we can make it, a early Christmas Service at Motre-Dame is the best
it is dark, no one is on the street, security screening and armed police are a giving
Afterwards, wandering central Paris and stopping into secondary churches is something which we discovered. We could walk into any of the great coffee houses, but instead we go to Pied de Corchon, sometimes the only person in the place
(we are under the impression that the grand coffee houses are too exploitive for breakfast)
Last year we toured the Towers. This is include in the Museum Pass, although you need to schedule the time in “Duck The Line”
Really spectacular, just the climb is a trip, but the gargoyles and bells are as good as you expect.