Gyz Gala and Oglan Gala are the remains of parapet fortresses dating back to the medieval period located in Mary, Turkmenistan. They are part of the ancient city of Merv, which is one of the most important historical and archaeological sites in Central Asia. Gyz Gala, meaning 'Maiden’s Castle,' and Oglan Gala, meaning 'Young Man’s Castle,' have intrigued visitors with their names and the legends associated with them.