This is an Illustrious lora for the Americana architecture style.
A weight of 1 to 1.35 works well with this with most models. A weight on the small scale will allow for modern realistic buildings and settings while the higher setting makes pictures adhere more to the style with less realism. Sampling Steps of 15 to 35 works well with most models, as does a CFG Scale of 3 to 7 with most working at around 5.
Prompts for this lora are ( Sumerian, building, city, cityscape, ). The prompts ( ziggurat, Nisroch (basically any Sumerian God), statues, river, canals, ) also works well with this since they are all related to Sumeria.