Timelapse shot panning from the left to the right, showing a building under construction, as masons and other builders are busy working using cranes and other heavy equipment, near Danube in Austria

timelapse construction construction workers cranes building danube river bridge hard hat river bank riverside engineering structure design project architectural design development masonry builders masons complex megaprojects structural prefabricated developer expansions contractor megabuilding builtscape rebuilding scaffoldings expansion restructuring infrastructure infrastructural modernization real estate real property installations skilled workforce construct