Does anyone know why these graves have a door? I can’t seem to find information on them anywhere. Why are they there? What’s the point? Are they there to help add new additions or perhaps they’re there in case someone made a mistake? I just can’t figure it out.
Graves with a hatch
A closer look at door number 1.
Here's door number 2.
Any theories, both real or imagined, would be appreciated. 
JH
