Palmavera Nuraghe
A remarkable nuraghic complex dating between the XIII and VI centuries B.C.: made up of an older nuraghic tower and stone boundary walls with tower-huts. Particularly interesting is the so-called "Meeting House", with a stone bench around its perimeter and a small model nuraghe, which perhaps served some cultural purpose, in the centre.
Alghero's Spanish Ramparts
The defence system of "Steadfast" Alghero still bears witness to the Aragonese and Spanish period. In the historical centre of the town, in addition to numerous stretches of the walls, the San Giacomo, San Giovanni, Vincenzo Sulis and Maddalena defence towers are very interesting.
The Angelu Ruju Necropolis at Alghero
The necropolis consists of 38 domus de janas with the bull symbol, of the "Ozieri" type. Access is by means of vertical-shaft entryways or corridors. Plans show a design with numerous cells, often decorated with fake doors, cornices, columns, pillars, socles or bulls' heads, sometimes coloured red.
Neptune Grottoes
Located inside the Capo Caccia promontory, they are Sardinia's most beautiful, most famous grottoes. They can be reached by boat from Alghero (a 3-hour trip) or by the spectacular stairway (656 steps) called Escala del Cabirol. Magnificent rooms and concretions.
L'Argentiera Mining Centre
Not far from Alghero, just a few kilometres from the town of Palmadula, near Capo dell' Argentiera, we find the mining centre of the same name, set up in the nineteenth century to exploit lead and zinc deposits. Abandoned in 1962, the site is an excellent example of industrial archaeology. Many of the sturctures of the main unit, made up of four rectangular buildings, are built of wood with sloping roofs, and fit into the incredibly beautiful panorama. The washery is remarkable, overlooking a pebbly beach surrounded by cliffs.