Day 2 - Visits to Belogradchik fortress, Felix Romuliana (UNESCO sight) and Castra Martis
Day 3 - Morning visit to "Baba Vida" fortress (the only entirely preserved medieval castle in Bulgaria)
Day 4 - Veliko Turnovo city tour including Tsarevets Fortress
Day 5 - Day tour to Cherven fortress and the Roman ruins of Nicopolis ad Istrum
Day 6 - Visits to Shumen and Ovech fortresses on the way to Varna
Day 7 - Day tour to Kaliakra fortress and the early Byzantine fortress in Yailata
Day 8 - Visit to Old Nessebar (included in the UNESCO list)
Day 9 - Visits to the legendary Bukelon fortress and the 11th century Byzantine fortress near Mezek village
Day 10 - Visits to Perperikon and Tatul
Day 11 - Visits to to Ustra - X century Byzantine fortress and the Devil's bridge
Day 12 - Visit to Assenova fortress and the Renaissance town of Old Plovdiv
Day 13 - Day tour to Hisarya and the Thracian cult complex by the village of Starosel.
Day 14 - Visit to Trayanovi Vrata fortress
My price is 10 Euro per hour + petrol costs (air-conditioned car).
Also see tour packages in:
Europe Bulgaria History Whiz Archeology/History Sightseeing