I've only driven past Manzanar. I don't think I went past Westerbork when I was in the Netherlands.

"Manzanar National Historic Site (U.S. National Park Service)"

https://www.nps.gov/manz/index.htm

Camp Westerbork - Kamp Westerbork

https://www.kampwesterbork.nl/en

Because I was in Amsterdam and Utrecht. So that's not anywhere near Westerbork

Future field trip opportunities!