Shikharji on Parasnath Hill
One of the main pilgrimage destinations for Jains, it has a hilly location that was once surrounded by primeval forests. The temple buildings have been standing at least since 1765 AD, but most likely are considerably older. Trip to all 31 temples takes 12 hours and is 28 kilometers long.
Map of the site
If you see this after your page is loaded completely, leafletJS files are missing.