I visited the Mémorial de la Déportation on Ile de la Cite. It was designed by French architect Georges-Henri Pingusson.
It is dedicated to the 200.000 Jews, Jehovah's Witnesses, gays, criminals, gypsys and the mentally ill who were deported during WW2.
This is a quote from Antoine St. Exupery that appears there:
This wall of tiny lights represents the 200,000 deportees:
We underwent a thorough search before being admitted to this subterranean monument.