Estonia
Upper Town Wall
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Work on the town's defences first began in 1265, but the current outline of the wall dates to the 14th century. By its heyday in the 16th century, the wall was 2.4 km long, 14 to 16 metres high, up to three metres thick, and included 46 towers.
Today roughly half of the original towers still loom over Old Town, evoking images of heroic knights and damsels in distress. Many of the Town Wall’s towers serve as museums.
