This chapter looks at potential allusions in Horace’s Odes to the religious buildings in Rome known to have been constructed or substantially repaired by Augustus. These major construction projects in Rome in the Augustan period are naturally a topic of interest to contemporary poets; in the case of the Odes, it can be argued that there are many points of contact between poetic and architectural artefacts, and even that the Roman literary achievement of the Augustan poet as proclaimed in Odes 3.30 can be paralleled with a Roman architectural project of Augustus himself. It is also interesting to note that though Horace’s Odes contain a number of potential allusions to a range of projects in the considerable programme of temple construction and renovation later carefully recorded by Augustus in the Res gestae, there are no allusions to the Temple of Diuus Iulius, perhaps because the memory of Julius Caesar was felt to be too problematic.