  A geometrical framework for the definition of entropy in General Relativity
via Noether theorem is briefly recalled and the entropy of Taub-Bolt Euclidean
solutions of Einstein equations is then obtained as an application. The
computed entropy agrees with previously known results, obtained by statistical
methods. It was generally believed that the entropy of Taub-Bolt solution could
not be computed via Noether theorem, due to the particular structure of
singularities of this solution. We show here that this is not true. The Misner
string singularity is, in fact, considered and its contribution to the entropy
is analyzed. As a result, in our framework entropy does not obey the
"one-quarter area law" and it is not directly related to horizons, as sometimes
erroneously suggested in current literature on the subject.
