The nuraghe Palmavera is classified as a complex nuraghe, that consists of several towers joined together. The nuraghe and the surrounding village were built in various phase during the Bronze Age and the Iron Age.
The main tower dates back to the first phase (15th-14th century BC) and retains the central chamber covered with the tholos and built with stones in limestone. The tower is archaic, with the entrance free of side passages and with the niches just sketched in the walls of the main chamber. There must have been also some huts outside the nuraghe.
In the second phase (first half of the ninth century BC) was added a second tower and restored the previous tower with blocks of sandstone. The two towers communicated through an interior courtyard and a corridor with niches.
It was also built the meeting hut, equipped with a stone seat that runs along the perimeter, interrupted by a tank made of stone slabs, of unknown function, and a round stone seat for the chief, standing next to a niche in the wall. At the center of the hut, on a circular altar, it is present a model of a nuragic tower in sandstone. In this period were also built other huts in the village of higher dimension.
In the third phase (9th-8th century BC), the nuraghe was restored again with blocks of limestone and around it was built an exterior wall with four towers-huts, forming two outer courts, divided by a wall with no openings. In one of these courts it was inserted the meeting hut, in the other has been identified a silo.
The village was destroyed by fire, probably at the end of the eighth century BC and was later sporadically attended in Punic and Roman times, as witnessed by some pottery found.
References:The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.