Build in early 1800's and the only fortification of its kind from this kind in Northern Europe that has been
preserved without significant alterations.
Planning of the fortress began in 1772 by decree of Tsar Alexander I of Russia, shortly after the
First Partition of Poland when Latvia ceded to Russia and construction began during Napoleon's attack of the Russian Empire in 1810.
Construction of the fortress, despite lengthy delays, serious floodings and slow construction work, was completed in 1878.
From 1948 to 1994 the fortification was in use by the Soviet army.
www.urban-travel.org/fdb
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