At the Wannsee Conference on January 20, 1942, senior Nazi officials meet to determine the manner in which the so-called "Final Solution to the Jewish Question" can be best implemented.
Somewhere in the world right now--much closer than you think--people are playing with trains. You might not see them at first, but they're there. In basements. In garages. In converted Army barracks. They're among the world's most compelling underground communities.
