- usefultravelarticles.com 7018-ruins-of-the-roman-…Ruins of the Roman Amphitheater (Amphitheater of Serdica) description and photos - Bulgaria: Sofia. Detailed information about the attraction.
- crystalpalace-sofia.com arena-di-serdica-…Archaeological excavations immediately started – thus the Amphitheatre of Serdica (Amphiteatrum Serdicense) was discovered!
- triphobo.com places/sofia-bulgaria/amphitheater-…0.2% of people who visit Sofia include Amphitheater Of Serdica in their plan. Number of Times Amphitheater Of Serdica is Added in Itineraries.
- tripadvisor.com.ph ShowUserReviews-g294452-…Amphitheatre of Serdica: A newly built relic. - See 472 traveler reviews, 389 candid photos, and great deals for Sofia, Bulgaria, at Tripadvisor.
- brilliant-tourism.com 12519814-ruins-of-the-roman…Video: The ruins of the Roman amphitheater (Amphitheater of Serdica) description and photos - Bulgaria: Sofia.
- connollycove.com serdica-bulgaria/The Structure of the Amphitheater of Serdica: The theater was originally built on the ruins of an earlier Roman theatre from the 2nd or 3rd century AD.
- visitsofia.bg en/cityinfrastructure/what-to-see/…The amphitheater, uncovered in most recent years, was one of the most imposing buildings in Serdica at the tail-end of the 3rd century.
- web.archive.org web/20220312151036/https://www.…(0.01 км) La Terrazza di Serdica Panorama Restaurant.
- visit-sofia.blogspot.com 2011/01/amphitheatre-of-…This amphitheater in the Roman city of Serdica was discovered several years ago but unfortunately the municipality allowed the erection of a hotel over it.
- ru.wikibrief.org wiki/Amphitheatre_of_Serdica