I promised to write what I know about cemitries in Italy. Unfortunatelly I'm not very confident with this theme, so I can tell you what I've heard.
Italians have to put their deceased in the cemetry the same day when they are dead. But they do not burry them: the coffin remains open till the next day in a special room. It is because there were cases when the dead persons woke up from their lethargic sleep. I think it comes from Middle Ages.
Normally cemetry is outside the town. (photo 1) It is not very vast place with different parts inside. The gate is open as an office: from...till... They call cemetry "Campo santo" -"holy place", "holy field".
There is not so much place in the cemetry, so first the deceased is burried for about 10 years, I think. Than the remains are exhumated and posted in a special wall (photo 3). Some families can allow themself a sort of room, an external crypt, where the deceased members of the family are posted in special holes made in 3 walls of the "crypt" from the floor till the ceiling. One of them, where I was once, looked like the background part on the last photo. First is the church of the cemetry here, I think, and than are the crypts.