Isengard
This is model of Isengard as it was in the Second Age of Middle Earth. The tower of Orthanc sits in the middle of a lush plain. The MOC was done in nano-scale (smaller than micro-scale).
The hexagon base is Lego Otaku’s design.
I built it for LOLUG’s May Iron Builder competition. The seed part was the black lightsaber hilt.

A look at the underside of the hexigon:
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