<p>A Temple to Hercules near the *Circus Maximus, without identified remains, was rebuilt or restored by Pompey the Great (according to both the epithet <i>Pompeianus</i> used by Vitruvius and Pliny’s specification <i>in aede Pompei Magni</i>, see below). Vitruvius mentions the temple as an example of the old-fashioned, Tuscan style (<i>De arch.</i> 3.3.5: <i>aedium species ... uti est ad circum Maximum Cereris et Herculis Pompeiani, item Capitolii</i>), so a rectangular ground-plan is certain and a rather early date for the original structure can be assumed. The temple stood by the Circus Maximus (<i>apud circum Maximum in aede Pompei Magni</i>: Pliny, <i>NH</i> 34.57, mentioning its statue of Hercules by Myron), perhaps not too far from the Temple of *Ceres (itself tentatively located) near the Circus’ W end, since Vitruvius (<i>loc. cit.</i>) describes both as <i>ad circum Maximum</i>. Without identified remains, any attempt to locate the temple more precisely remains inconclusive. Coarelli, who advocates an identification with a temple to Hercules Invictus (as does Ziolkowski), understands the <i>aedes</i> as a complement to Hercules’ grand altar (*Hercules, Ara Maxima) and places it between the altar and the Circus (<i>LTUR</i> III, 16 and 20; id. 1988, 105 fig. 20). This problematic hypothesis lacks specific evidence for the location, as the mid- to late-Imperial <i>Hercules Invictus</i> inscriptions Coarelli proffers were found further N at the site of the Round Temple near S. Maria in Cosmedin (*Round Temple: Forum Bovarium). Nor can the equation of the Hercules Invictus temple with Pompey’s <i>aedes</i> be taken for granted (cf. Richardson 188); Pompey’s motto ‘Hercules the Invincible’ (<i>invictus</i>) at the battle of Pharsalus (App., <i>B Civ</i>. 2.76) is hardly a sufficient basis (as claimed by Coarelli 1988, 80; cf. Ziolkowski 46). While the Pompeian temple “could have stood anywhere in the vicinity of the Circus” (Richardson 188), it may well be located somewhere at the Circus’ W end, near the findspots of the Hercules inscriptions and the probable site of the Ara Maxima, where we cautiously place an index number.</p>