Why is there such a concentration of early neolithic temples on Malta?
Seven world heritage sites, plus several other significant locations (see Megalithic Temples of Malta) adds up to a lot of temple tons per Malta's 316 square kilometers. That's one site every 24 square kilometers.
Is this density reflected elsewhere in Europe, or North Africa, or the Mediterranean? My impression is that it isn't.
If there are more temple tons per square km in Malta, then either:
- More were built in Malta or ...
- Same number were built everywhere but were taken down/eroded everywhere else.
So I guess my question is, did Malta 3000BC have more spare capacity than everywhere else? Or otherwise where did all the other temples go?
edit: When I say "temple ton" I mean a ton of stone in a discretionary neolithic structure. Like a measure of effort available from the population.