  We review recent results from lattice on topological aspects of QCD: most of
the results refer to monopoles and to instantons. We discuss in detail the
evidence for condensation of monopoles in the vacuum and confinement of colour
by dual superconductivity, and the major role of monopoles in dynamics
(monopole dominance). As for instantons we review the $U(1)$ problem, a
possible determination of the spin content of the proton, and new lattice data
relevant to instanton liquid models.
