The Metropolitan Cathedral of the Annunciation construction began on Christmas Day, 1842 with the laying of the cornerstone by King Otto and Queen Amalia.
Workers used marble from 72 demolished churches to build the Cathedral's immense walls. Three architects and 20 years later, it was complete. On May 21, 1862, the completed Cathedral was dedicated to the Annunciation of the Mother of God by the King and Queen. The Cathedral is a three-aisled, domed basilica. Inside are the tombs of two saints killed by the Ottoman Turks during the Ottoman period: Saint Philothei and Patriarch Gregory V.
Saint Philothei built a convent, was martyred in 1589, and her bones are still visible in a silver reliquary. She is honored for ransoming Greek women enslaved in Ottoman Empire's harems.Gregory V the Ethnomartyr, Patriarch of Constantinople, was hanged by order of Sultan Mahmud II and his body thrown into the Bosphorus in 1821, in retaliation for the Greek uprising on March 25, leading to the Greek War of Independence. His body was rescued by Greek sailors and eventually enshrined in Athens.
In the Square in front of the Cathedral stand two statues. The first is that of Saint Constantine XI the Ethnomartyr, the last Byzantine Emperor. The second is a statue of Archbishop Damaskinos who was Archbishop of Athens during World War II and was Regent for King George II and Prime Minister of Greece in 1946.
The Metropolitan Cathedral remains a major landmark in Athens and the site of important ceremonies with national political figures present, as well as weddings and funerals of notable personalities.
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.