house', dating approximately to the mid-4th century BCE. This building included mosaic flooring and has been suggested to have been a residence for foreign diplomatic delegations. It was used until the 1st century BCE, by which point it had been extended and modified multiple times and occupied a surface area around 1,000 m². Around 280 BCE, the theatre was built, along with an adjacent naiskos. Throughout the Hellenistic period, the area of the theatre became the central point for public building, and further structures, including a temple dedicated to the goddess Tyche, were added. To this period also belong the 2nd-century-BCE fragments of a colossal statue of Zeus, sculpted by the Athenian sculptor Eucleides, now held in the National Archaeological Museum in Athens and once displayed in a temple of Zeus. Other temples in the upper town included a temple of Apollo and temples of Artemis Agrotera and of Aphrodite Urania, and of the Syrian Goddess. According to Pausanias, Serapis and Isis were also worshipped in the city, pointing to contact with Ptolemaic Egypt. Along with the other members of the Achaean League, Aigeira fought alongside Philip V of Macedon against the Aetolian League in the Social War of 220-217 BCE. In the early stages of the war, in 219 BCE, the city was attacked and temporarily occupied by Aetolian forces, who had set sail from the opposite town of Oeantheia in Locris. A hoard of nearly 600 silver coins, found in the so-called 'guest house' has been conjectured to have been hidden there in the course of this raid. By the 2nd century CE, when Pausanias visited, the city consisted of two parts, both known as 'Aigeira': a port on the Gulf of Corinth and the upper town, 12 stadia () from the port. Between around 150 CE and 250 CE, the natural harbour was supplemented with concrete constructions, particularly two breakwaters built in opus caementicium. It is possible that earlier harbour structures existed, since obscured by the Roman construction and later seismic activity. Aigeira continued to be occupied throughout the Roman period, and new structures were built into Late Antiquity, sometimes re-using spolia from older buildings. In the 3rd century CE, a massive seismic uplift left the harbour structures approximately four metres above sea level, rendering the port unusable; this event may be connected with a third-century earthquake which destroyed the city itself. Aigeira underwent a period of