Here there is a Men-an-Tol, which is a stone known as the Cornish Pebble that is balanced on two supporting stones, an immense egg-shaped mass of granite, perched on a hill nearly 700 feet above the sea, and is thought to weigh 750 tons.
Should you want to cure rheumatism or sciatica, there is a rather unusual ritual to undertake during the month of May. The ritual states that you must crawl round the Tor on all fours in the direction of east to west. Then you must squeeze through the two stones. It is also said to hold the power of divination, and in order to know the future you must leave an offering of pins laid crossways on the top.
For further information, please read Haunted Britain by Antony D. Hippisley Coxe.