Ak Astana-Baba (Uzbek: Oqostona bobo maqbarasi / Оқостона бобо мақбараси) is a 10th-11th century mausoleum that is located in the Sariosiyo District, Surxondaryo Region of Uzbekistan.
[1] The mausoleum was submitted to the UNESCO World Heritage Tentative List on June 1, 1996, in the Cultural category.
[2]