Does anyone know what kind of fungus this is?
It appeared as if by magic in the middle of our lawn about two weeks ago, and has since grown to an enormous size.
Here's another photo taken from above, with a UK pound coin to give some idea of scale.
You can see from the damage to the top, something is nibbling away at it, but I'm not sure if it is safe for humans to eat. Consequently I'm just looking and admiring.