The Roman aqueduct Peña Cortada is the main attraction of Valencia’s La Serranía region. The aqueduct gives you the opportunity to walk through tunnels carved in rock, cross impressive bridges, and admire unique scenery of the area.
The colossal work of hydraulic engineering was built by the Romans in the 1st century AD. The aqueduct is one of the most important in the country and conserves sections over 28km. The most spectacular elements are the Rambla de Alcotas Bridge, the Barranco del Gato Bridge and the Peña Cortada in Calles, an impressive vertical cut followed by a gallery carved in the rock that can be visited.
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.