  How can we design the shape of an object, in the framework of Newtonian
gravity, in order to generate maximum gravity at a given point in space? In
this work we present a study on this interesting problem. We obtain compact
solutions for all dimensional cases. The results are commonly characterized by
a simple "physical" feature that any mass element unit on the object surface
generates the same gravity strength at the considered point, in the direction
along the rotational symmetry axis.
