Here is a picture at one of the holy sites I visited. Now, I had no idea what it was until I was told. Let me give you context. It is positioned indoors, about 10 feet from a holy grave site. Take a guess and comment on what you think it is...

At Kever Rachel

I'll come on later (via a new post) to let you know.

Okay, contest is over: Answer is... It Is a Place to Dispose of Bombs (בור בטחון) read more...