Yabba dabba doo! Could these bulging, Flintstones-style towers be the future of eco-building?

What the source reports
Ruggedly good-looking and greener than bricks and concrete, Petra Heights are made of three-metre slabs of rough rock. Could they herald a new stone age? Our writer fires up his Flintmobile There’s been a geological eruption on London’s Finchley Road.
Great chunks of pink basalt and igneous larvikite appear to have exploded from the railway cutting, shooting skywards to form teetering towers. Anyone trying to find Finchley Road & Frognal station need wonder no more: just look for the multistorey…
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