Church of St. Mary of Panagia Katholiki is a small stone church originally built sometime in the 5th century AD, on the foundations of an early Christian Basilica. Parts of the foundations are still visible today. The church is triune, which means it's dedicated to three holy people or groups of three. In this case it pays homage to the Holy Mother, St. Luke and to the three Prelates.
At some stage before the 8th century, an earthquake struck the island, causing serious damage to many buildings, including this church at Afandou, which completely collapsed. But the inhabitants were determined to replace their favorite place of worship and so in the years that followed, the little church was gradually re-erected. But it was probably not meant to be because it was again leveled during another earthquake that hit the area towards the end of the 8th century. The chapel was patiently and painstakingly reconstructed for the third time.
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.