  We present a static, spherically symmetric, traversable wormhole solution to
multimetric gravity which is sustained by only non-exotic matter, i.e., matter
which satisfies all energy conditions. The possibility of this solution arises
from the fact that under certain conditions the multimetric gravitational field
equations reduce to the Einstein equations, but with a negative effective
gravitational constant. We show that the Arnowitt-Deser-Misner mass of this
wormhole vanishes, so that it appears massless to observers in the
asymptotically flat spacetime. We finally speculate on the feasibility of
creating and maintaining this type of wormhole by an advanced civilization.
