Answer:
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
Each of these ends in a kettle full of precious metal and the double variety is quite awesome
A beacon from home to guide your way. It can be a lifesaver on a stormy day. What is it?
It is the assumed nocturnal symbol of Mr. Wayne. What is it?
Golden treasure I contain, Guarded by hundreds and thousands. Stored in a labyrinth where no man walks, Yet men come often to seize my gold. By smoke I am overcome and robbed, then left to build my treasure anew
Sometimes I am white, sometimes I am dark. Most people love me. What am I?