Dome-Covered Nave                                      NW     N     NE 
(-------------------------------------------------)     W <---(M)---> E
                                                        SW     S     SE

Although the church is essentially a eight-sided building, it has
features not found in any other churches you have seen.  Perhaps most
obvious is the addition of a second apse on the south side of the building. 
The origin and purpose of this feature has never been explained
satisfactorily.  Above your head is a dome covered inner octagon, light
filtered in from the windows surrounding it plays over the glittering
mosaics and glowing marbles that cover the building's complex surfaces,
producing an effect of inspired tranquillity.  The octagon design extends in
every direction, with apses to your north and south, and columned niches to
your west and east.  
A diocletian choir member praises with open mouth.
The High Priestess of the church conducts daily devotions here.