Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Roman Walls of Lugo' has mentioned 'Construction' in the following places:
Occurrence Sentence Text Source
A mix of materials was used for the construction of the towers.
Despite the renovation work carried out, the walls conserve their original layout and the construction features associated with their defensive purpose, with walls, battlements, towers, fortifications, both modern and original gates and stairways, and a moat.
The use of local materials such as slate, granite and other stones that were re-used in the construction process gives the late imperial walls an original appearance, further enhanced by the fact that their perimeter and upper walkway are completely intact.