>> Britain really is littered with this stuff.

Mnyeah, although a lot of them are destroyed because progress trumps learning about the past, apparently. At least the British Isles' past. Isn't it weird that the British public goes gaga over e.g. Greek, Roman, Egyptian etc artifacts but doesn't give a toss about finds in Britain? I mean look what they're doing to Stonehenge. Have you been to the Acropolis? The entire area around it is pedestrianised. Have you been to the pyramids? Can you imagine the Egyptians building a large road going through that archeological site?