Short answer: not much. As I have indicated before, the surviving unbuilt-upon area is shrinking. I first photographed the area (i.e. Voss-Strasse) in 2010, at least when I was walking on it. I had photographed it earlier, for the first time I think in c. 1978/9 when we were obliged to look over the Berlin Wall courtesy of a viewing platform, access to which the poor buggers on the eastern side were denied (unless you were a bigwig with lots of medals and/or money). Here JFK looks over the Wall. He would be dead almost exactly five months later.
There were viewing platforms at various places all along the western side of the Wall. If you stood on top of the one at the Brandenburg Gate and looked to your right you would see this:
OK, the photo was taken in 1991. So sue me. But it is the same area that was presented to us tourists back in the 1970s. The NRK is completely gone and if you draw a line directly down from the Alexanderplatz Tower (middle centre) you’ll see a small hill. The guides told us that was where Hitler’s bunker was. I suspect that they were pretty much right although it appears to me that the hill covered the bunker exit. Anyway, that rubbish road on the middle-right is Voss-Strasse and you can make out the branch of the Transport Ministry still standing as it does to this very day at further mid-right. And here’s how you might see it if you were Doctor Who:
We now know where everything stood on Voss-Strasse. But what can you still find?