Other excavations done jointly with the 20th Ephorate of Prehistoric and Classical Antiquities near the North Harbour of the city uncovered a multiperiod site with remains extending from a late Ottoman cemetery (including a "vampire" burial, a middle aged man with spikes through his neck, middle and ankles) to a substantial Roman building constructed around a colonnaded courtyard (probably a tavern/brothel in its final phase in the mid-4th century AD) to remains of Hellenistic structures and debris from different Hellenistic manufacturing processes (pottery, figurines, cloth making and dyeing, bronze and iron working) to archaic and classical levels with rich collections of Aeolic grey wares. A section of the late classical city wall runs across the site which was close to the channel that divided the mainland from the off shore island part of the city. Considerable remains of the two moles that protected the large North Harbour of the city are still visible just below or just breaking the surface of the sea; it functioned as the commercial harbour of the ancient city although today it is a quiet place where a few small fishing boats are moored.