The ancient Vrykous city of the Dorians may have reached its peak during the 4th and the 3rd centuries BC, but this place seems to have been inhabited since the Minoan – Mycenaean era. The ancient city has been completely looted. Its carved tombs stand wide open with no grave goods left in them. The residents Christianized the place during the next centuries (according to reports of the Archaeological Service three basilicas were built during the 5th and 6th century) and used ancient materials to honor Ai-Giannis of Vroukounta at the edge of the cape inside a hidden cave.
Walking down the stone steps of the cave the visitor-pilgrim comes across the inner sanctuary of this rudimentary church.
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.