The city council is hereby empowered to acquire, construct, operate and maintain public ways, parks, public grounds, cemeteries, markets, market houses, public buildings, libraries, sewers, drains, sewage treatment, waterworks, electrical systems, gas systems, airports, hospitals, and charitable, educational, recreational, sport, curative, corrective, detentional, penal and medical institutions, agencies and facilities, and any other public improvements inside or outside the city, and to regulate the use thereof, and for such purposes, property may be condemned under procedures established under general law applicable now or as provided in the future.