Arrival at Sofia International Airport. Depending on the arrival time: City tour of central area or free time. The city tour usually starts from Alexander Nevski Cathedral, then continue to St. Sophia church,  along the Yellow square and with a view to all emblematic buildings around it, to the Presidency, St. George Rotunda and end with a nice walk along Vitoshka Pedestrian street to the National Palace of Culture. After this don't forget to visit on the outskirts of Sofia, to visit the Boyana Church; an UNESCO Heritage