Day 4:A visit to the Thracian tomb of Aleksandrovo is followed by Stara Zagora to see the extraordinary, Neolithic house complete with shelves and pots and hearth.  It is more widely known as a prosperous city founded by Emperor Trajan.  We shall be taken beneath the city streets to a Roman house decorated with excellent mosaics. Dinner at local restaurant and overnight at the Efir Hotel, Stara Zagora.