What is civil engineering?

Civil engineering is a  professional  engineering  discipline that deals with the design,  construction , and maintenance of the physical and naturally built environment, including works like roads, bridges, canals, dams, and buildings.There  have been  historic wonders happened  like Taj Mahal, Coliseum of Rome and the Great Wall of China or modern masterpieces like the London Bridge and Howrah Bridge. there were civil engineers