Author: the_dawggiethe_dawggie
Date: Jul 17, 2008 23:20
70 cm thick sloped 2.5%% drains water through porous concrete,
so doesn't get potholes.
$1,500 euros for a driver's license though.
I'm surprised they would let Australian or US drivers on one :-)
Interesting show - likely be repeated - Megastructures on NatGeo.
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