Final answer:
The Romans used the cardo and decumanus system to orient their temples, reflecting their architectural and urban planning skills.
Step-by-step explanation:
The civilization that used the cardo and decumanus axes to orient their temples was the Roman civilization. The Romans are renowned for their architectural and engineering prowess, which included constructing grid-patterned cities. These grids were based on two main streets: the cardo running north-south and the decumanus running east-west. This method helped to organize the spatial layout of numerous Roman cities. Moreover, temples and other significant buildings were often constructed at the intersection of these two central roads, demonstrating the Romans' preference for order and design in urban planning.