Which words and phrases from the poem best contribute to a sense of setting?

The entire poem paints a beautiful picture, not only the landscape but of the historical milieu. The physical descriptions give us the desolation and emptiness of the mise-en-scene – the trunkless legs, the shattered visage and the pedestal lie in the sand “ in the desert “; “nothing besides remains.” Round these remnants of what once was a statue testament to the builder, Ozymandias, of a now lost civilization; "Around it boundless and bare,/ the lone and level sands stretch far away.”   The italicized lines best contribute to a sense of setting.  The rhythms, the metaphors of ruin, and the hubris of the builder (his boasting revealed by the fact that nothing remains of his empire) all are expressed by the other lines of the poem -- by the "story" implied in the narrative.