The 3D mandala structure was the main element on which the capetown mesh and all structures and elements rested upon.
The short clip of the mandala opening sequence clip is below, in HD and SD.

The hundreds of structures were made in Maya using a breakdown of each structure here, created to make sure no pieces were re-modeled unnecessarily.  This method also helped streamline version control and made updating major sections of the mandala via Maya references much easier.