Castel del Monte: http://bit.ly/Wf0u7i The geometric marvel of the middle ages explained mathematically. http://bit.ly/1lJuMvk

Castel del Monte: http://bit.ly/Wf0u7i The geometric marvel of the middle ages explained mathematically. http://bit.ly/1lJuMvk Source:

Castel del Monte: http://bit.ly/Wf0u7i The geometric marvel of the middle ages explained mathematically. http://bit.ly/Wf0u7l

— reaktorplayer (@reaktorplayer) September 4, 2014

September 04, 2014 at 05:57AM

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