This is the Jewish Museum in Berlin.
After spending some time learning from the exhibits on the basement floor and learning about the atrocities of the holocaust you come to this sign.
It is quite emotional as you go through all the exhibits documenting this horrible event.
As you approach the installation, you hear metallic clanking noises from a distance and you finally turn the corner and are confronted by this dark, windowless concrete corridor.
Populated entirely by tortured faces of thick steel.
You are encouraged to walk on the loose pieces of steel as they make loud, clanking sounds.