Accessing the rooms
From the main entrance, Place du 20 Août:
enter the building,
take the right corridor (follow the “Inscriptions” arrows on the floor)…
…that you’ll continue for quite some time, nearly to the end.
Really, do not turn to “Inscriptions”, continue the corridor…
…to the stairs…
…and go down the stairs on the right…
Yes, right, this is not a trick… follow the light!
Get out of the building,
and turn left,
to this other building there:
For R30 (instruction for S100 below, skip a few pictures), go up
continue the corridor to the end,
really to the end,
behind the door,
You got it!
For S100, go down
and you are there: