Arrival in Sofia. Check in at your hotel. If time permits - private city tour of Sofia, the capital city of Bulgaria, which Contantine the Great once called "My Rome". Visit Alexander Nevski Memorial Cathedral, St. Sofia 6th c basilica, the Parliament Square, National Theatre and the Old City Garden, St. George rotunda, the mineral springs and the ruins of Ancient Serdica.
Dinner at a traditional restaurant to taste local dishes. Overnight.