There are very many different shapes, sizes and constructional forms of tombs, but they are all simply chambers.
It depends on how you look at it. The people in the tombs are, but the tombs themselves are wonderful!
All the Pharoahs of Egyt had tombs (and coffins) to preserve them and their memory, as a tribute to how great the kings were.
They didnt get tombs.
because they felt like it
Yes they did
No, they had gravestones.
Pyramid, pyramids
Because they were cool like that
Royal tombs are tombs of a Pharaoh or a Queen.
its stone tombs.
there religion told them different things to do to the tomb or coffin
Because they want to still look powerful after death x