The Sulayman Mountain in Osh. Mosque at the top of the mountain. Detail.

The Sulayman Mountain in Osh. Carved inside the mountain is the National Historical and Archaeological Museum Complex Sulayman. It was established in 1949 as Osh Regional Museum. The present museum building was completed during the Soviet era in 1978 to celebrate the 3,000th anniversary of the city of Osh. The structure represents a glassed concrete arch that closes the entry to the cave.