Kolodruma (Bulgarian: Колодрума) is a velodrome and a multifunctional indoor arena located in Plovdiv, Bulgaria. It has a seating capacity of 4,800 to 7,500 spectators depending on its use. It is built on the place of the former track cycling velodrome in Plovdiv and currently is the only indoor velodrome in Bulgaria and the largest one on the Balkans. The architect of the project is the Dutch Sander Douma, who has previously created the largest-known velodromes in Europe, notably the facilities in Athens, Monte Carlo, Palma de Majorca, and Manchester amongst others. * * *