👉 The Salt Dome Cave is the longest salt cave in the world, with a length of over 6,850 meters.
👉 The cave has a constant temperature of 30 degrees Celsius and humidity of 80% throughout the year.
👉 The cave's interior is a catalog of rare geological phenomena, including underground cone-shaped formations, crystal-like stalactites, and a large saltwater lake.
👉 The cave was discovered in 1677 by a team of Iranian and Czech geologists.
👉 The cave was registered as a national natural heritage site in Iran in 1990.
👉 The cave was recognized as one of the 100 most important geological sites in the world by the International Union of Geological Sciences in 2022.