Final answer:
Elaborate frescoes were not a characteristic of the temple of Uruk; instead, decorations included glazed bricks, engravings, colossal statues, and three-dimensional figures.
Step-by-step explanation:
The temple of Uruk did indeed feature a massive ziggurat and had a complex floor plan. However, elaborate frescoes were not a major visual or formal characteristic of the temple of Uruk. While Mesopotamian cultures used frescoes in their decoration, they were more prominently known for using glazed bricks, engravings, and colossal statues for temple decoration, as well as three-dimensional figures replacing bas-relief in some cases.