Temples: related to naturalism, vitality and energy. They started Tuscan and Composite orders. Placed on a very high podium whose staircase was located in the axes of the door of the cella.
Civil works: specialists designing structures like sewage networks, roads, aqueducts, bridges and walls to protect the cities.
Commemorative buildings: we can see Triumphal arches that are rectangular structures with three openings and columns with the only function of commemorate an historic event or someone important.
Public buildings: an important social role as baths, libraries, schools, space for commercial relations… They contained: tepidarium, caldarium, frigidarium, natatio…etc
Theatre: perfect semicircular, employed to perform without any religious or education purpose. Composed by a scene with decorations and rows of seat, it also had space for the orchestra.
Amphitheatres: double theatres with elliptical scene. Dedicated to fights of gladiators and its spectacle.
Basilica: conceived as courts of justice for legal proceedings. Rectangular space built next to the forum.
Circus: destined for races, gladiatorial combats, shows and performance.
Domus: private buildings of richest families with public relation rooms and private rooms, dining room, kitchen and garden. They were decorated by mosaics, paintings and sculptures.
Insula: private buildings of plebeians. Buildings of three or four floors divided in flats. A flat was divided in cooking rooms and sleeping rooms, they used to live several families at the same time.
Cities: the roman structure of cities was orthogonal. The streets were irregular rectangles with a civic space in the enter called forum.