Stonehenge is a prehistoric monument and consists of an outer ring of vertical sarsen standing stones, each around 13 feet (4.0 m) high, seven feet (2.1 m) wide, and weighing around 25 tons, topped by connecting horizontal lintel stones. The stones are set within earthworks in the middle of the most dense complex of Neolithic and Bronze Age monuments in England. It is one of the few structures in Life After People that have an official concept and production before being scrapped.
??? after people: Stonehenge managed to survived for many years, but the fields is starting to grow like a forest. While some of it's standing stone falls from wind and gravity, the monument is starting to be covered in greenery.
| What? Times Square exists - but it's just a collapsed ruin here!
Stonehenge has some more coverage on the Life After People Fanon Wiki. (Note that the events' timelines may be different.)