Radomysl Castle is a historical and cultural complex created in 2007–2011 by Olga Bogomolets MD, a Ukrainian doctor and public activist. The castle's center is an old flour mill built in the town of Radomyshl (Zhytomyr region, Ukraine) in the late 19th century by Polish engineer Piekarski. The mill was constructed upon the ruins of a paper mill built in 1612 by the order of the archimandrite (abbot) of Kyiv-Pecherska Lavra Yelisey Pletenecki (1550–1624). During research conducted during the reconstruction of this building, it was discovered that it had been planned to be used as a fortress. Since 2011, Radomysl Castle is part of the Council of Europe’s cultural project called Via Regia, its purpose is to promote cultural exchanges by means of tourism between European countries.