Viiralt's Oak, named after well-known Estonian graphic artist Eduard Viiralt's 1943 engraving, stands proudly in Estonia's Viljandi area. This 13-meter-tall tree, also known as Tamme-Koori tamm, holds historical intrigue. Legend has it that the King of Sweden personally planted it from a broken log, promising a return of Swedish power to Estonia. Despite landscape changes, the oak remains robust, with a 550 cm circumference. Commemorated on a silver coin for Estonia's 90th anniversary, this iconic tree embodies cultural and historical significance. A must-see for art enthusiasts and those exploring Estonia's rich heritage.