Well, here's another whack at a Hexagonal Temple / Keep idea.
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As I started with the hexagonal keep (post) I created hexagonal walls and stuck a hexagonal structure at the center.

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From this central building I created three additional buildings that radiated out from the core like large halls for lectures or something.
If this was a temple complex then the shrine could be at the center and each hall could be housing for the priests and any travelers or visitors to the temple.

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The space created between the buildings becomes perfect spots for gardens and the like.

This would be a perfect mock-up for a temple complex in a town or city.

Sometimes buildings are easier to knock together with sketchup than in gimp so I can get a sense of what they would look like in 3-D before I build the 2D map.