Badab Surat The unique travertine staircase fountain in Iran is unmatched in the world, located in the village of Arist, the four district of Sari city. This spring was registered by the Cultural Heritage Organization in 2008 after Mount Damavand as the second natural heritage of Iran in the National List of National Works. The global registration of this bottle has also been the second largest spring water source in the world since Turkey’s Pamukkale.