Plovdiv of which are high. Because of these hills, Plovdiv is often referred to in Bulgaria as "The City of the Seven Hills". Plovdiv is host to a huge variety of cultural events such as the International Fair Plovdiv, the international theatrical festival "A stage on a crossroad", the TV festival "The golden chest", and many more novel festivals, such as Night/Plovdiv in September, Kapana Fest, and Opera Open. There are many preserved ruins such as the ancient Plovdiv Roman theatre, a Roman odeon, a Roman aqueduct, the Plovdiv Roman Stadium, the archaeological complex Eirene, and others. The oldest American educational
PFC Lokomotiv Plovdiv can be defined as that of "Sportclub Plovdiv" (being the fan-based team), and of club of the railway workers (being the team funded by the union). In the spring of 1922 the sport club "Karadzha" is founded administratively by the consolidation of some casual football teams in one of the districts of the city of Plovdiv so that the players can compete in the Championship of Plovdiv. Two years later, in 1924, the sport club "Atletik" is formed in the same district of Plovdiv as Karadzha. On 26 July 1926 the two sport clubs from the same district, Karadzha and