The governing body may by ordinance cause the streets, highways, parks and public places of the municipality to be lighted, and erect and maintain on and in such streets, highways, parks and public places, all proper poles, conduits, wires, pipes, fixtures and equipment, and may acquire, by purchase, condemnation or gift, all necessary real estate, and erect thereon all necessary buildings and equip the same with necessary equipment and machinery, all at public expense.