Berlin is the epicenter of one of the most grotesque authoritarian moments in world history: the rise of Adolf Hitler and the Nazi regime, and all of the horrors that flowed out of that. To consider that history, and the possible threats from authoritarianism in the present, Tim asked his colleague Andreas Kluth, who writes about politics and national security for Bloomberg Opinion, to be his tour guide around the city. Together, they examined three landmark sites – the Reichstag building, Hitler’s bunker, and the Holocaust Memorial – to see what can be learned from the past.