The reservation system
I wish to visit a place where the reservation is obligatory
I wish to visit a place where the reservation is not obligatory
I carry out a reservation on the website for a specific hour.
I select my visiting time. GUided visits are organised throughout the day.
I fulfill my order with additional visits (if i wish so).
When I'm finished, I buy my passport(s) covering the relevant week-end(s).
I join the group at the specified time. On the same week-end, I may also visit the other buildings (those without compulsory reservation).
I may visit this building and the other buildings without compulsory reservation on the same week-end.