The splendid Deutsches Historisches Museum is celebrating its 30th birthday, and everyone is invited. A full day of special events will include a number of free guided tours in English: <strong>Craving for New Pictures at </strong>11 am, <strong>1917. Revolution </strong>at noon, <strong>The Invention of Press Photography at </strong>1 pm and <strong>German History in Images and Artefacts </strong>at 2pm and 4pm.