jewish memorial, vienna the memorial, made out of plastic bricks.

Wien, Heldenplatz, Rede Adolf Hitler the speech of hitler on march 15, 1938

the jewish memorial covering the monument of prinz eugen at the heldenplatz vienna.
the heldenplatz in vienna was the place where hitler held his “Anschluss” speech.
the memorial was made out of plastic bricks. i was trying to look who has done it, but i couldn’t find it. if you know, let me know. thank’s.