Fitbit says I've gotten 10.4 km in so far today, over to the Brandenburg Gate, through the Holocaust Memorial, down to Mehringplatz, then up Friedrichstraße past Checkpoint Charlie and back to Unter den Linden.
I might have some more walking in me yet. One bonus (at least on that front) is that my hotel room is not only one of the furthest from the hotel entrance, but it's up one flight of stairs and down another to get there. Nice room, though, with windows that actually open, which is unusual these days.
As it's just noon in Chicago, and possibly due to the walking, I'm a bit hungry, so I'm off to find some Schnitzel. Photos later.