Tallinn grew at the foot of the castle, which the Danish king, Valdemar II, had built after having defeated the Estonians at Lindanäs (which is also one of the city’s historical names) in 1219. The Estonian language is closely related to Finnish, where “linna” (stronghold or castle) can be found in many place names like Sovonlinna (Newcastle) and Olavilinna (Olof’s Castle).
Tallinn was previously called Reval under Swedish, Danish and German rule.
Estonia replaced their currency, the Kroon, with the Euro at the beginning of this year. You can buy Euros at FOREX Bank without any extra fees.