Strada Potaissa is a short cobbled lane south of Piața Muzeului that preserves the most visible stretch of Cluj's medieval city wall. The lane runs against the wall, with stone buttresses and arched openings on one side and old houses on the other.
It's one of the city's photo spots — the medieval atmosphere is undiluted — and it leads naturally toward the Tailors' Bastion at the eastern end. Walk it as a loop from Museum Square.