The road outside the corner shop
We have roads and car parks in Australia too where the bottle tops
have dug in and embedded themselves in the road surface.
Here there is as much bottle cap as road. The difference is that they
are not from beer, but from soft drinks. The slightly more ominous
indicator is the level of heat that must be on the tarmacs in Summer
to melt it to this extent.
I have always loved squashed bottle caps. I can see people of the
future wandering our archaeologiccal sites, and thrilling to find
evidence of long dead people who opened the bottles and drank the
contents. Unless, of course, they assume that this is a form of