Huge ShivLing at the Kedareshwar Cave at Harishchandragad which is a hill fort near kalyan in the Ahmednagar region of India.

the cave is supported on four pillars , out of which only one is left. At the end of each yug one pillar falls.
It is said that when the fourth (and the only remaining) column breaks, the world will end.

This is the cave of Kedareshwar, in which there is a big Shivlinga, which is totally surrounded by water.The total height from its base is five feet, and the water is waist-deep. It is quite difficult to reach the Shivlinga, as the water is ice-cold. There are sculptures carved out here. In monsoon it is not possible to reach this cave, as a huge stream flows across the way.