Icehouse:

The picture above is of an entrance to an Icehouse.An Icehouse is an underground space for keeping ice and food frozen.These were used by the very rich and usually attached to large country houses.

I found one of these recently so i thought i would explore it.I had to force the door open to look inside .I had a very long climbing rope which i was going to tie to a tree and use top absail down the hole should there be anything interesting down there.Disappointingly it was empty .It was a wierd place though.Imagine a 50 feet deep circular hole that as it got deeper it sort of tapered into a cone shape that had a plughole in it so it could drain.It was about 40 foot wide in circumference.