Flohmarkt & Pope Francis
Sunday's in Germany are literally the best (and the worst if you need anything at the store!) because everything is closed. Streets aren't crazy busy. Life is slower. You can actually hear the birds chirping. Even in the busiest part of the city. The sabbath is really truly a sabbath.
One cool thing that Germans like to do on Sunday's are flea markets. Empty parking lots on city suburb streets casually fill up with couples and families and individuals with cars full of old things they're looking to sell. And though these markets can often be crowded, they're not crazy chaotic. And there can be some pretty cool things there.
Good thing I was out of cash, otherwise I know I would have been tempted to buy many things.