This is one of the oldest church in the Bulgarian capital Sofia, dating to the fourth century. In the predecessor building took place the Council of Serdica held most probably in 343 and attended by 316 bishops.

This is a Late Antique red brick rotunda in Sofia, Bulgaria. Built in the early 4th century as Roman baths, it became a church inside the walls of Serdica, capital of ancient Dacia Mediterranea during the Roman Empire and Byzantine Empire

Travelers will see the Roman Empire's heritage- 2-6 c.

The Western Gate of Serdica is protected by towers – in the preserved section of the fortress wall a pentagonal tower is next to the gate and another triangular tower – in close proximity. The Western gate of Serdica is located between "St. Joseph" Catholic Cathedral, Todor Alexandrov boulevard and the Monument Symbol of the City of Sofia.

Travelers will see the Northern Gate of the City Serdica

Travelers will visit the museum which has part of the Roman City Serdica. Inside could be seen ancient streets and part of buildings

The Library's collection contains nearly 8.5 million documents. Every year, it receives about 70 000 publications. The National Library “St. St. Cyril and Methodius” is the largest book treasury in Bulgaria. We will visit the Library inside.

Travelers will see the Roman Heritage which is inside the Baths Building 2-6 c.