We will be in Paris from January 20 - 24. Can anybody suggest a tour guide for bth Notre Dame and Sainte Chapelle. We are very interested in architecture and history. San Chapelle requires time stamped tickets, but the website for purchasing tickets seems to be broken. The Notre Dame website lists tickets only a few days before and as of today tickets are sold out for the next 2 days. Ideally we would like to visit both at the same time. Thank you for your suggestions.
Elly Cohen