Other
The entrance has an information stand.
This big door closes the train entrance.
There is still a train running, it transports the visitors now. It takes the needed power from a pick up which rolls over a electrical wire on the ceiling.
The light tank AMX 13 is post war because it was introduced in 1953. I have driven it myself on a Dutch training ground during my active military service.
He's cooking a stew with potatoes and sausages.
Tools and spare parts
A cable corner.
One of the diesel engines that powered the entire system.
Every parameter is monitored.