Council shall have power to establish and vacate and to use, and to control and regulate the use of its streets, alleys, bridges, and public places, whether such public places be located within or without the limits of the city, and the space above and beneath them. Such power shall include, but not be limited to, the proper policing and supervision thereof and to the licensing and regulation, or the prohibition of the placing of signs, awnings, awning posts, and other things which are of such nature as to impede or make dangerous the use of sidewalks or streets, upon or over the sidewalks or streets of the city, and the licensing and regulation of the construction and use of openings in the sidewalks or streets, and of all vaults, structures, and excavations under the same.