If poking around long-ruined urban buildings is part of your story, this mapset provides a derelict city block to root around in. Don't be fooled by the quite complex-looking ruin on the front cover, the actual building is quite simple.
A nice point is that the roof has fallen in, so you have a clear view of the internal layout, as well as some stairways leading down into cellars or other depths below. There's also what appears to be a lift shaft and stairs that once led upwards.
The roads around show evidence of long-term neglect, overgrown and cracked.
A somewhat strange suggestion involving subterranean ants is provided as an adventure seed; but an investigation of a long-ago incident or some post-apocalyptic scavenging seems a more likely use for this map.
As always, there's an A4 overview map and a series of maps with hex, square and no grids for miniatures use. There's also a huge JPEG image for those who have access to professional print facilities or who use a virtual table top for their gaming.