I arrived in Berlin late last night, and the first things I saw when I got into the train station were:
a) An advertisement for the Blue Man Group
b) A Dunkin Donuts
So I had a moment of Boston nostalgia around these two originals my hometown-- It's easy these days, since I love New England fall dearly. But... then I forged ahead into the unbelievably complicated S-Bahn-U-Bahn metro system, which puts dear old Boston to shame (there are something like 25 lines!) and remembered what city I was in, after all.