For your safety as well as that of our agents, wearing a mandatory mask during your visit. Everyone must have a ticket, please take a ticket for adults, but also for children.
The monument is free on the Saturdays and Sundays of the ""European Heritage Days"" which are organised on the 3rd weekend of September ; the 1st Sunday of the month (from 1 February to 31 March and from 1 November to 31 December).
No baggage deposit is offered within the monument.
The e-ticket is to print at home or present on your mobile phone or tablet.