Underground cemeteries. There are some places where they dug massive tunnels with many stories and entire vestibules [e.g., “Minharot Olam” under Har HaMenuchos] equipped with lighting, elevators, and various amenities to serve the visiting public. They create a whole city of kevarim numbering in the thousands, built with all the various new methods. Some use קבורת שדה on the tunnel floor (23), and on many levels (32). There are some kuchin in the tunnel walls (35), and there are artificial concrete kuchin (36). The common denominator is that most of them are not burial spots that follow our long-standing tradition. Thus, the only kevarim one should use there are the ones classified as קבורת שדה in the ground or in kuchin that are truly in the ground (עי' היכל הוראה ח''ה סי' קל''ו וקל''ז ).
“Hashem will swallow up death forever..” (Yeshayohu 28,5)
We should be zoche to Techias Hamesim
