Thanks to Germany's Federal Intelligence Service, the BND, making its new home in the city in 2019, and the war in Ukraine, Berlin is once again becoming a European capital of spying, as it was during the Cold War.

After the fall of the Berlin Wall in 1989, Check Point Charlie became a tourist attraction and for a while spying in the city came to lose its purpose. One of the last vestiges of Berlin's heyday as an espionage hub, the Unter den Linden Hotel, where generations of East and West German