Civil engineering is the field of engineering that deals with the design, construction, and maintenance of buildings, dams, bridges, highways, and other physical structures in their environment. Some key points made in the document include: - Civil engineering is one of the oldest branches of engineering, with many ancient structures like those in the Indus Valley civilization. - A civil engineer designs and maintains infrastructure like buildings, bridges, highways, dams, canals, and water treatment systems to improve quality of life. - Famous civil engineering structures include the Palm Islands in Dubai, Petronas Towers in Kuala Lumpur, the Taj Mahal, Eiffel Tower, and Great Wall of China