The Gothic town hall of Arras and its belfry were constructed between 1463 and 1554 and had to be rebuilt in a slightly less grandiose style after World War I. The belfry is 75 meters high and used to serve as a watchtower. Nowadays tourists can enjoy ascending the belfry.
The belfry of the town hall is part of the UNESCO World Heritage site of The Belfries of Belgium and France (the group of 56 historical buildings).
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.