Kihnu Church, built in 1784, is one of the few orthodox churches converted from a Lutheran sacral building. Almost all Kihnu people converted to orthodoxy from 1846 to 1847, the Lutheran church was given to the orthodox congregation by order of Tsar Nicholas I and an onion dome was built on the bell tower. Inside the church, you can admire a simple but beautiful iconostasis that covers almost the entire width of the room.
Reference: Visit Estonia
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.