On the outskirts of Echternach is located one of the largest and richest estates of the northwestern provinces of the Roman Empire. The completely excavated manor house, measuring 118 x 62 m, was probably a palace. It had 40-70 rooms on the ground floor alone, provided with peristyles, courtyards, basins, marble facing, mosaic pavement and underfloor heating. This magnificent estate consisted of at least ten more buildings, which regularly lined up left and right of the estate wall and were discovered through aerial photographs and geophysical prospecting. Visitors can embark on inspecting the well-preserved basements, cellars and ornamental ponds of the estate, which resurrects in all its splendour thanks to numerous digital reconstructions. More than 70 medicinal and ornamental plants as well as a pergola covered with vines are displayed in a Roman garden.
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.