This chapter charts the rise and fall of Virgil’s Carthage to explore some of the ways in which the paradoxical resonances of this city are productive of a sublimity that expresses its ambivalent status in the Aeneid. Under construction in Book 1, Carthage surges up before us offering a glimpse of the city’s glorious Augustan refoundation, but also a vision of the nascent Punic menace that would become Rome’s greatest enemy. In Book 4, Carthage has lapsed into an almost ruinous state threatening imminent collapse, a threat partly realised in the image of the city’s destruction that is a fantasy of its Roman conquest (4.669–70). From the start of the poem, though, it is clear that this city is not just Carthage, it is also Troy and Rome, so the vision of its destruction is not only a reassuring affirmation of Rome’s eventual triumph but a disturbing reminder of vulnerability. Virgil’s paradoxical Carthage encapsulates the Burkean sensation of the sublime ‘delight’ that ‘turns on pain’, its Augustan space sublime and thrillingly unstable.