Visiting the Old National Gallery/ die Alte Nationalgalerie on Museums Sunday/ Museumssonntag Berlin

On the first Sunday of each month, many of Berlin's museums are free to visit. Some you can book online and others you have to just turn up. Fabian and I went rather early to avoid the queues. The old national gallery is absolutely massive.
Anyways, play a game I have invented called, Where's Fabian? Take a drink or whatever when you see him. Correct number of sightings wins a prize or some nonesense like that.