It is one of the great pilgrimage sites for followers of the Jain religion. There is a huge monolithic statue of Gomateshwara (also called Bahubali), the son of the first tirtankara of the Jain religion, on top.
https://en.wikipedia.org/wiki/Shravanabelagola
https://en.wikipedia.org/wiki/Jainism
https://en.wikipedia.org/wiki/Gommateshwara_statue
https://en.wikipedia.org/wiki/Bahubali
https://en.wikipedia.org/wiki/Tirthankara