 
 <prompt> ```Who build di church wey get religious and decorative secular ceiling mosaics? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context:``` <response>: For Rome, Nero and im architects use mosaics cover some parts of walls and ceilings for Domus Aurea wey dem build for 64 AD, and wall mosaics dey also for Pompeii and oda places wey dey near. But e be like say na for Christian era na im figural wall mosaics come be major form of artistic expression. The Roman church of Santa Costanza, wey serve as mausoleum for one or more of the Imperial family, get both religious mosaic and decorative secular ceiling mosaics for round vault, wey fit be the style of contemporary palace decoration. 