Most people do not think of Berlin as a beautiful city, but it is filled with stunning sights, sounds and textures, all the more astonishing when the stories behind them are revealed. Today's Berlin is new and vibrant, but history has left its scars. A look in the right place is rewarded with glimpses of the glories of old Prussia as well as the abominations of Hitler's Third Reich and of the outer bulwark of the Soviet empire. Brian Ladd, a historian who has been returning to Berlin for twenty-five years, pays homage to the familiar landmarks, but he also penetrates into obscure corners of...