Although the facade of the Treasury of Petra contains many Greek architectural elements, it also departs from Classical Greek architecture in its use of plastered mud bricks instead of pure stone use of plastered mud bricks instead of pure stone A use of figural reliefs instead of freestanding sculptures use of figural reliefs instead of freestanding sculptures B combination of a columned portico with a pediment combination of a columned portico with a pediment C combination of a broken pediment and tholos