The Roman graves are situated high above the municipality of Nehren between vineyards. The tombs, dating from the fourth century AD, were rebuilt on their foundations in 1974. The burial chamber of the first tomb is the only room from antiquity still existing in the Rhineland in which the original painting of the walls and the vault has been largely preserved. It is the family tomb of a landowning family whose residence is to be found in the extensive rubble field that was repeatedly excavated on the terrace directly north above the village of Nehren. The graves were extensively restored in 2002-2005. From here you have a magnificent view of the Moselle valley.
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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.