Hamina fortress is a very rare circle fort, representing the Renaissance ideal city embodied by Palmanova city in Italy. It was built after Great Northern War to the ruins of Vehkalahti town.
After Treaty of Nystadt border between Sweden and Russia was moved to Kymeenlakso area in Finland. The construction of the fortress started began by Swedish general Axel von Löwen in 1720s. Protected by six bastions of the fortress the garrison was responsible for defending the city and the coastal road. When next war began in 1741 Hamina fortress was still uncomplete. It was conquered by Russian forces and in new peace treaty fortress left to the Russia side of border.
Russians continued fortress construction in the command of general Aleksander Suvorov. It was part of the South-Eastern Finland fortification system, which was implemented to defence St. Petersburg against western enemies. In the beginning of the 19th century Hamina fortress was outdated and it was reconstructed by the Dutch general Jan Pieter van Suchtelen. When Russia conquered Finland in the Finnish war in 1808-1809 fortress lost its military status. It was abandoded in the 1830s and tsar Nikolai I gave it as the property of Hamina city. During the Crimean war in 1853-1856 fortress reinforced again to fight against the British and French fleet.
Restoration was started in 1957. Much of the fortress remains to this day, and it is used as a venue for different events. Parts of the fortress are still in military use, as the Finnish Reserve Officer School is located in the fortress.
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.