section_path: Ruins/Inner city structures
section_name: Inner city structures
paragraph_text: Inner city structures
  
  The ruins of mosques, baths, and houses, dispersed among the gardens and apartment buildings that now occupy a great part of the space within the Roman and Byzantine fortifications, show that the Ottoman-era town center, though now less considerable, was once a place of importance; but it never was as large as the Byzantine city. It seems to have been almost entirely constructed of the remains of the Byzantine-era Nicaea, the walls of the ruined mosques and baths being full of the fragments of ancient Greek, Roman, and Byzantine temples and churches.
  
  In the northwestern parts of the town, two moles extend into the lake and form a harbour; but the lake in this part has much retreated, and left a marshy plain. Outside the walls are the remnants of an ancient aqueduct.