Architecture
Architecture is both the process and the product of planning, designing, and constructing buildings or any other structures. Architectural works, in the material form of buildings, are often perceived as cultural symbols and as works of art. Historical civilizations are often identified with their surviving architectural achievements.
Building
A building, or edifice, is a structure with a roof and walls standing more or less permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, and aesthetic reasons. To better understand the term building compare the list of nonbuilding structures.
Engineering
Engineering is the creative application of science, mathematical methods, and empirical evidence to the innovation, design, construction, operation and maintenance of structures, machines, materials, devices, systems, processes, and organizations. The discipline of engineering encompasses a broad range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied science, and types of application. See glossary of engineering.
Architecture
The civil engineer is the real 19th century architect.
William Burges in: The Ecclesiologist, Vol. 28, 1867, p. 156:
Architecture
The stone which the builders refused is become the head stone of the corner.
Psalms. CXVIII. 22.
Architecture
The hasty multitude
Admiring enter'd, and the work some praise,
And some the architect: his hand was known
In heaven by many a tower'd structure high,
Where scepter'd angels held their residence,
And sat as princes.
John Milton, Paradise Lost (1667; 1674), Book I, line 730.