No other city was as marked by the Cold War as Berlin. At the Wall, the power blocs confronted each other, and the intelligence services from East and West maintained their espionage centers here, with each system trying to present its way of life as exemplary. It was only after the peaceful revolution in East Germany in 1989 that the divided city could reunite and become the capital of a united Germany. The book leads to both well-known and lesser-known sites of this history, explains the historical events in a concise manner, and introduces the key figures involved. Several maps and a clear graphical presentation of the facts assist with quick orientation on-site.