Roman and Thracian ruins at Serdika metro station central Sofia Bulgaria Europe


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Photo credit: © Peter Forsberg / Alamy / Afripics
License: Licensed
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Keywords: ancient, balkan, balkans, bulgaria, bulgarian, capital, city, country, eu, europe, european, indoor, metro, person, roman, ruin, ruins, serdika, sight, sofia, station, subway, thracian, tourist, underground