On a tour to see Plovdiv's ancient monuments and ruins, Catriona realizes why the city is called the 'Eternal City's of Bulgaria.
On visiting the town of Nessebar, which is over 3000 years old, Catriona sees that there is much more to Sunny beach than meets the eye.
From Perperikon Fort to Boyana church, the monuments of Sofia are portals to different periods of its rich history.