Palmyra Castle or Fakhr-al-Din al-Ma'ani Castle is a castle overlooking Palmyra in the province of Homs, Syria. The castle is thought to have been built by the Mamluks in the 13th century on a high hill overlooking the historic site of Palmyra, and is named for the Druze emir Fakhr-al-Din II, who extended the Druze domains to the region of Palmyra during the 16th century. The castle became a UNESCO World Heritage Site in 1980 as part of the site of Palmyra.