A zigzag line of fortifications is formed by a rampart with 8 bastions, 6 ravelins, 6 counterguards and other protective structures: lunettes, redoubts and a moat. On the left bank of the Daugava River there is a bridgehead. Each detail of the fortress was developed using the construction experience of the best architectural schools of Tsarist Russia and Europe.
Inside the fortress was planned as a traditional military town: in the centre there was a parade ground, surrounded by blocks of administrative and residential buildings. All the facades of the buildings represent the Empire style, except Nicolas Gate and the water tower built in the Gothic style. Daugavpils Mark Rothko Art Centre is situated in the Arsenal building at Daugavpils Fortress. It is the only place in Eastern Europe where the original masterpieces of the famous painter and the founder of the abstract expressionism can be seen.