On the end of the island behind the Notre Dame cathedral in the small garden is a memorial to the 200 000 people, mostly Jews, that was deported by Nazi’s to concentration camps in the second world war. Most of these people never returned.
From the walkway behind the cathedral the memorial is not visible. You need to descend the steep concrete steps to enter the memorial. A stark triangular space confront you with a view of the river trough a barbed wire sculpture.