  We introduce new realistic brane-solutions with exponential scale factors in
the 6D-space-time. We show that for these solutions the zero modes of all bulk
fields are sharply localized at different positions on the brane and have
"Gaussian shape" wave-functions in the extra space. We also explicitly show
that in the model there are cases when exactly three fermion generations
naturally arise only through gravity. Because of localized fermion modes are
also stuck at different positions in the extra space, there is possibility to
provide a framework for natural explaining the fermion mass hierarchy in terms
of higher dimensional geography.
