Why is Christian and Muslim graveyard architecture different?

Answer 1

the correct setting for a Muslim grave according to the teachings of the prophet Muhammad pbh is that the grave has no decoration around it and such structure to do with concrete or other elements, and to be simple the reason for that is because the building of fancy structure around and above is a sign of praise which other nations in the past have fallen to excessive praise and then worship of the graves, so the prophet pbh new this and warned against it for the safety of the Muslim nation.