Infrastructure: Physical systems and structures necessary for the functioning of a society or region. It includes transportation networks (roads, railways), communication systems (telecommunications, internet), energy supply (power plants), etc.
Urbanization: The process of an increasing population shifting from rural areas to urban centers due to economic opportunities. Urbanization leads to the creation and growth of cities along with associated infrastructure.
Architecture: The art and science of designing and constructing buildings that are functional, aesthetically pleasing, and structurally sound. Architects consider factors such as style, materials used, spatial organization when creating their designs.