All the places I have ever lived have been suburban or rural, and yet there has never been much room for places left fallow; real estate was just too expensive.
The same is true here, I expect. Still, there are some places where you can see the bones of previous generations sticking out of the ground.

No idea why this building was left mostly standing, but it has been deteriorating since I first began coming here some twenty five years ago, at which time it was sometimes still in use. You can see, on closeup, the mix of materials- bricks, concrete, limestone and granite from local escarpments, chunks of rock yanked out of the wrackline and laid in place with lime mortar, from the looks of it, a hundred years or more ago. There is no cornerstone marking the date of build, at best, the date is like the end of a Johnny Cash song.

Now that I have a half decent camera, I will take pictures of this as I visit, and see how it fares from now on.