I usually show you family mausoleums with very old caskets inside. In this case, you can still see the marks the caskets left but they are now gone and only an ossuary box and an urn are housed here. Everything seems recently cleaned as well. Families often own the mausoleums in perpetuity and never move the caskets. Everything stays unchanged from the time of the funeral. Other times, families will have the bones transferred to an ossuary box to make space for the caskets of other family member