Poienari Castle, also known as Poenari Citadel is a ruined castle in Romania, notable for its connection to Vlad III the Impaler. The castle is located on a cliff, on the West side of the Transfăgărăşan road in Argeş County (Căpățânenii Pământeni village of the Arefu commune) on a canyon formed on the Argeş River valley, close to the Făgăraş Mountains.