What is architecture photography?  It depends on your perspective.  In the strictest sense, it documents the state of a building (exterior or interior) or other structure at a given point in time.  Architecture photography falls into three categories:

 

Documentary

An objective view of the building or structure that functions to accurately record the subject at the time of the image.  Limited retouching is applied.

 

Commercial 

Often used for marketing purposes or inclusion in a portfolio or presentation, these images enhance the documentary photo.  The time of day and quality of natural light are critical factors for pleasing exterior shots and auxiliary lighting may be necessary to enhance details.  Retouching can be extensive.

 

Artistic

These images are focussed on the overall visual impact of the image and can be quite interpretive.  They are often used as art pieces for residential or commercial spaces.  There are no rules when it comes to these images.