With a strong interest towards the notion of the circle in architecture, in this six-day journey the aim is to create a narrative between two European capital cities, Rome in Italy and Nicosia in Cyprus, which were both part of the Roman and Byzantine Empires. In the case of Rome, the interest is mostly at the architectural scale, looking at buildings which incorporate the circle in their environment. The immediate example is the Pantheon which gives reference to the form of the vaulted ceiling. In the case of Sant’Ignazio di Loyola, there is an additional dimension to the dome, with the augmented reality of a painted space within its complete geometry. In Nicosia, the interest shifts to the urban scale where the Venetian Walls, now divided, are a perfect circular shape in plan. The research for this journey, goes back to the 7th millennium BC, looking at quite a recent archaeological discovery in Kourion (Cyprus) of a collective settlement of round structures named Choirokoitia.