OK, so that's the newer velodrome in Detroit. The old one isn't in such great shape.
Here's some video of it in its heyday.
It was in a bad part of town then, and things have declined steadily since. (OK, Detroit has some issues. That's no secret.) It was never a shining example of what Velodromes should be, but it did produce some great riders.
Here is a photo of the once-kinda-glorious Dorais Velodrome taken in 2000.

Notice the tree growing up through the start/finish straight? That wasn't there when we were racing on it. (That was meant to be funny.) You may also notice that someone painted a large gun on the concrete. Nice touch.

In the foreground, Mike Walden's name can be seen etched into the conrete. I can only imagine what he would say today were he alive to see this.
Just thought you might like a glimpse of the old stomping ground.