Built in the 3rd century BCE in the Hellenistic period but under Roman domination, the Segesta Greek Theatre comprises a perfect, vast semicircle 63 metres in diameter situated on a rocky slope: the steps face towards the hills behind which, to the right, the gulf of Castellammare can be discerned. Every year, in summer, the theatre comes to life and fills with spectators ready to enjoy, in a timeless moment, the tragedies and plays which fascinated ancient peoples.
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.