Just two and a half kilometres away from the village of Arzachena, you will find the Albucciu nuraghe, one of the most characteristic and important examples of a 'corridor' building (or protonuraghe), the ancestor of the later nuraghes, although the truncated-ogival rooves were affected by the subsequent tholos building technique .
Dating back to the Middle Bronze Age (15th century BC), the nuraghe is completely hidden in a jagged grove of olive trees and Mediterranean scrub. The peculiarity, which differentiates it from the other nuraghes in the area, is its construction technique. The imposing granite blocks were carefully leant against an imposing, light-coloured granite rock that forms part of the masonry of the main building, as well as a preponderant part of the entire nuraghe.
The structure is very well preserved despite some collapses. The layout is irregular, typical of protonuraghes. The shape is rectangular with a north-south orientation and east-facing façade. At the entrance, surmounted by an architrave and open on the large façade, you will see, on the left, a deep closet and a large elliptical room covered with tholos on the right. You will also notice a series of corbels that, in the past, held a balustrade to protect the terrace. Past the entrance, you will see two small niches, one on each side. Further in, you will find a trapezoid passageway, and if you look up you can see a false dome ceiling. On the southern slope is the largest space on the ground floor. The very high roof allowed for a wooden loft that divided the hall into two floors. In the lower one, a mullioned window opens on one side, while a seat on the floor near the fireplace and a wall cupboard still give the nuraghe the impression of 'being lived in'. The upper floor is one of the largest rooms in the entire building: you will enter it via a staircase. It consists of a semi-circular open-air area and a series of rooms, including a large circular chamber, the largest of the nuraghe, accessible only from the terrace. The main daily activities took place on the upper floor: processing of milk and cereals, cooking bread and other foods.
Among the most important findings at the site are a hilted dagger, a statuette of an offeror and a closet of bronzes. These objects allow us to date the Albucciu nuraghe to between the end of the Middle Bronze Age and the Iron Age (around 1400-650 BC). The archaeological area, in addition to the nuraghe, also includes the remains of circular huts, which formed the nuragic village, and 80 meters from the complex the remains of a Giants' tomb called the Moro tomb, probably connected to the life of Albucciu. Not far away there is also the Nuragic temple of Malchittu.References:
Roman Walls of Lugo are an exceptional architectural, archaeological and constructive legacy of Roman engineering, dating from the 3rd and 4th centuries AD. The Walls are built of internal and external stone facings of slate with some granite, with a core filling of a conglomerate of slate slabs and worked stone pieces from Roman buildings, interlocked with lime mortar.
Their total length of 2117 m in the shape of an oblong rectangle occupies an area of 1.68 ha. Their height varies between 8 and 10 m, with a width of 4.2 m, reaching 7 m in some specific points. The walls still contain 85 external towers, 10 gates (five of which are original and five that were opened in modern times), four staircases and two ramps providing access to the walkway along the top of the walls, one of which is internal and the other external. Each tower contained access stairs leading from the intervallum to the wall walk of town wall, of which a total of 21 have been discovered to date.
The defences of Lugo are the most complete and best preserved example of Roman military architecture in the Western Roman Empire.
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.
Since they were built, the walls have defined the layout and growth of the city, which was declared a Historical-Artistic Ensemble in 1973, forming a part of it and becoming an emblematic structure that can be freely accessed to walk along. The local inhabitants and visitors alike have used them as an area for enjoyment and as a part of urban life for centuries.
The fortifications were added to UNESCO"s World Heritage List in late 2000 and are a popular tourist attraction.