Nearly overdosing on museums on Berlin's Museum Island, I ran from the Pergamon into the sanctuary of the wonderfully-named Lustgarten. The lawn was littered with people picnicking, playing frisbee and just generally enjoying the sunny September afternoon.
There stood the Berlinder Dom Cathedral. Tough to miss it. I wandered right in and was rewarded with one of the most beautiful ceilings I've encountered in my travels.
What to do in Berlin for Fun: http://bit.ly/18OBQPT