This posting utilizes three examples of Roman engineering to provide the following information:
Describe the item, including how it stands (arches, columns, vaults, free form, etc.).
What construction materials were used?
Where is the item - in modern Italy or outside of it?
What was its purpose?
Who primarily used it?
How is the public work/private house decorated? Do these decorations include words, or are they mostly pictorial?
As you examine three pieces, you might want to apply these ideas to guide you:
First, you could choose Ara Pacis Augustae.
As you describe it in terms of dimensions, research suggests that its height is ca.6.1m, while its length is
north and south:11.63m; east and west: 10.52m (http://www.clas.canterbury.ac.nz/nzact/artarhho.htm).
Construction materials consist of a rectangular marble precinct wall on a podium with two doors with staircases. It is also highly significant that all materials used in the construction, even the marble, are native Italian in origin.
Other materials also include:
* tufa for the core of the altar
* travertine (limestone) for the foundations, platform and pavement
* Carrara marble for the superstructure
Data gained from http://www.clas.canterbury.ac.nz/nzact/artarhho.htm.
Please also note the elaborately decorated altar. In terms of decorations, you might want to also mention how the lower band has "an elegant repeating frieze of acanthus volutes with swans and animals, while the upper band portrays four mythological scene"(http://www.clas.canterbury.ac.nz/nzact/artarhho.htm).
As you investigate composition features, please also note that its form of altar with screen walls, is likely Greek in origin.
Roman Architecture is examined within three pieces.