Lake Peipus Lake Peipus Lake Peipus (; ; ) is the largest transboundary lake in Europe, lies on the border between Estonia and Russia. The lake is the fifth-largest in Europe after Lake Ladoga and Lake Onega (in Russia north of St. Petersburg), Lake Vänern (in Sweden), and Lake Saimaa (in Finland). Lake Peipus represents a remnant of a body of water which existed in this area during an Ice Age. It covers , and has an average depth of , the deepest point being . The lake has several islands and consists of 3 parts: The lake is used for fishing
Lake Onega of Karelia (about 270,000 citizens) founded in 1703 by Peter I to exploit the natural ore deposits. Petrozavodsk area contains a large number of historical monuments, such as Architectural ensemble Round Square (end of 18th century) and gymnasium building of 1790. The embankment of Lake Onega contains a series of sculptures, many of which were presented as gifts from the twin cities. Kondopoga is known from 1495 and contains the Uspenskaya (Assumption) Church built in 1774. This construction is one of the tallest wooden churches of the Russian North. There are two carillons in the city, with 23 and 18