The Dome of the Rock is an Islamic shrine located on the Temple Mount in the Old City of Jerusalem. It was initially completed in 691 CE at the order of Umayyad Caliph Abd al-Malik during the Second Fitna, built on the site of the Roman temple of Jupiter Capitolinus, which had in turn been built on the site of the Second Jewish Temple, destroyed during the Roman Siege of Jerusalem in 70 CE. The original dome collapsed in 1015 and was rebuilt in 1022–23. The Dome of the Rock is in its core one of the oldest extant works of Islamic architecture.
Its architecture and mosaics were patterned after nearby Byzantine churches and palaces, although its outside appearance has been significantly changed in the Ottoman period and again in the modern period, notably with the addition of the gold-plated roof, in 1959–61 and again in 1993. The octagonal plan of the structure may also have been influenced by the Byzantine Church of the Seat of Mary (also known as Kathisma in Greek and al-Qadismu in Arabic) built between 451 and 458 on the road between Jerusalem and Bethlehem.
The site's great significance for Muslims derives from traditions connecting it to the creation of the world and to the belief that the Prophet Muhammad's Night Journey to heaven started from the rock at the center of the structure. The rock also bears great significance for Jews as the purported site of Abraham's attempted sacrifice of his son.
It has been called Jerusalem's most recognizable landmark, and it is a UNESCO World Heritage Site, along with two nearby Temple Mount structures, the Western Wall, and the 'Resurrection Rotunda' in the Church of the Holy Sepulchre.
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.