“Berlin Secrets” is the theme of this year’s Long Night of Museums. What secrets do paintings reveal when you look behind them or shine a light through them? What mysteries of science remain unsolved? What does it mean to hold out in hiding, to be forced to live out your faith or your sexual identity in secret? What fiendishly inventive ideas have secret services come up with to spy on people? Set out on a search for clues, peep through keyholes, get the creeps at murder-mystery readings or climb down into crypts and bunkers!

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