Just playing around with shapes again. This time I'm using a smaller octagonal shape conjoined with a larger space of the same shape. The smaller octagon is basically a glorified 'stairwell' by which people get from one floor to another.
The floors are chopped up into perimeter rooms each one connected to a larger, central room.

double-octo-keep-levels.jpg
double-octo-keep-levels-second-floor.jpg
double-octo-keep-levels-third-floor.jpg
double-octo-keep-levels-top-loor.jpg