Mount Paraw
Jujar is deepest cave of Asia. in 7 September 2015 Jujar cave in eastern front of the Paraw recognized as deepest cave of Iran. an Iranian caving team consist of 24 athlete has discovered 806 meter and 8 centimeter of this cave. before this event Paraw cave (also located in this mount ) was deepest cave of Iran. in August 2016 an international expedition started to discover whole of the cave. eventually they announced that they successfully achieved to more than 1000 meter depth of the cave. thus Jujar became deepest cave of Asia and Iran.
Indian Caverns
Indian Caverns was a show cave in Spruce Creek, Pennsylvania, United States from 1929-2017. It is a horizontal karst cave of Ordovician Nealmont/Benner limestone, estimated to be about 500,000 years old. It is the second-largest cave in Pennsylvania and the largest limestone cave. Indian Caverns consists of two sections, originally separated by a 14-foot wall: the "Historic Cave" and the "Giant's Hall". The "historic" part of the cave is generally low-ceilinged and closer to the surface (as shallow as 15 ft) with a couple of wide rooms and extensive speleothem formation. The Giant's Hall area consists of several large passageways, up to 60 feet high, but with fewer speleothems - though it does include the largest sheet of flowstone in the northeast and a substantial rimstone pool. The lowest point of the cave is approximately 140 feet beneath the surface and the cave temperature is a constant 56 degrees Fahrenheit (13 degrees Celsius).