On the three ridges of the hill of Terravecchia it is situated the ancient area of Occhiolà, that developed him along an only principal road axle of medieval origin, it notices a great deal simple structures, typical of a country suburb.
On the tall part the imposing castle was found, of which lean traces remain, among which a buttress realized with blocks of square stone. This hilly system that constitutes the greatest part of the territory of Grammichele is an extraordinary archaeological layer that continues to be dug and studied since the first searches of Paul Orsi at the end of last century, and that today you/he/she could become a great cultural park. Here it is found, probably, the ancient Echetla, city sicula then ellenizzata, testimony of the Greek expansion toward the hinterland, of the relationships between natives and Greek.
Necropolis, residences and sacred areas have returned innumerable finds that notice the wealth and the artistic taste of this center.
The earthquake of 1693 completely destroyed Occhiolà and citizens moved to the near Grammichele.
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.