Poland - Construction of a dam in Czorsztyn. Excavation and preparatory work. Poland - the Gdynia Port the loading of ships. Czechoslovakia - construction of the largest hydroelectric power station. Czechoslovakia - Installation of the factory floor. The construction of the plant, together with the GDR, USSR, Czechoslovakia. Czechoslovakia - Garbage on the outskirts of the city dump. Garbage in the forest. Dirty Creek. Sewage treatment plant. Czechoslovakia - the New quarter of the city of Bratislava. Garbage dump. Construction of a factory for recycling. Powerful a treatment facility for wastewater. Design office: development of new treatment options water. Czechoslovakia - Bratislava, streets, monuments. The historical buildings of the city. Excavations of the ancient Roman Gerulata on the right Bank of the Danube. The restoration of the old buildings in the city.