The Roman aqueduct of Patras is a major work of the Roman period in Greece and a vital part in the water supply of Roman-era Patras. Today parts of the aqueduct are visible around the short Patras' bypass road and the neighborhoods of Aroi and Asyrmatos. The aqueduct measured 6.5 km from the springs of Romanos to the city acropolis, today part of Patras Castle. For the greater part of this distance, the water passed through an underground channel, passing over valleys and gorges on carefully constructed archways, parts of which still stand.
The Romans rendered Patras a Roman colony in 31 BC. The city was an important gateway between Greece and Italy, and the Roman architecture dominated the city completely. Roman emperors and city benefactors funded many public buildings and projects in the city with the aqueduct being one of them; a necessary infrastructure for the water supply of a populous city like Patras. Most probably during Hadrian's reign (117–138) the Romans built a large water cistern at the springs of Romanos in Mount Panachaiko, in the form of an artificial dam, part of which is incorporated today in the modern day water-tank. Several large pieces of that wall still remain in the region. According to an inscription found, Nymphs were worshipped at the location of the Romanos springs. For the greater part of this distance, the water passed through an underground pipe, passing over valleys and gorges on constructed archways, parts of which still remain today. According to foreign visitors of the city, the aqueduct was in a good condition still carrying water until the 17th century when the city incorporated a water pipe supply system, rendering its use obsolete.
The construction of Patras' short bypass road was heavily delayed for more than 10 years due to the original planned path crossing the course of the Roman aqueduct. Furthermore, in 2006 an additional medieval aqueduct of the Ottoman period (15th-16th century) was discovered just a few hundred meters away from the Roman aqueduct. In order for the road works to continue, it was decided in 2009 to cut and remove parts of the medieval aqueduct and transfer and exhibit them in the same place with the ruins of the Roman one. In September 2018 the mini ring road opened to the public, along with a small archaeological park called Roman and Medieval Aqueducts of Patras along its side where people can visit the unified aqueducts. Parts of both aqueducts still remain located in private properties, with the Roman one passing through houses' yards in the local neighbourhood of Asyrmatos.
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.