The Old Waste Water Treatment Facility in Bubeneč, a national heritage protected site, will be converted into an open-air water treatment technology museum leveraging the latest technologies and offering a multi-functional public facility with exhibition and conference halls, catering and other services, and an archive. The Old Waste Water Treatment Facility in Prague – Bubeneč is a significant monument of architecture, technology and water management history. It was built in 1901-1906 as the final element of Prague’s sewerage system.