Dun an Sticir is an Iron Age broch situated approximately 9.5 kilometers north of Lochmaddy in a lake on North Uist. A building was erected on the site in the late-medieval period. Dun an Sticir was probably built in the Iron Age in the period between 100 BC and 100 AD, like most brochs. Limited excavations resulted in finds of pottery.
The broch was probably inhabited during the Viking period. In the Middle Ages the broch was converted into a rectangular hall, or small tower. The entrance was enlarged and a window was constructed. Outbuildings were added and there was a larger building on Eilean na Mi-Chomhairle. The causeway from the north side of the lake to Eilean na Mi-Chomhairle was widened to 3 meters, so that carts could get to the island.
The broch has a total diameter of 18 metres. The walls of the broch are 3.5 metres thick and in some places a little more than three metres high. The circular interior of the broch was in the Middle Ages transformed into a rectangular area 10 metres by 4.6 metres. The axis is northeast-southwest. The entrances are 1.1 metres wide, located in the northwest and southwest of the rectangular space. The wall at the southwestern entrance is 2.5 metres thick.
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.