This photo of the old post office in Cambridge is available from Wikimedia Commons, but the top Google hit for it was from some aggregater named xiongdudu.com. No doubt, it's important to somebody whether you visit one or the other, but I'm not the person.
The first 35 minutes of my run this morning went pretty well. I warmed up for 15 minutes, then picked up the pace for another 20. At that point, I should have dropped back to jogging, but I dropped all the way back to walking. I jogged a little and walked a little for another 20 minutes or so, which got me cooled down. At least as cool as was possible. Overall, it wasn't quite the run I had planned, but it wasn't bad.