  After almost 5 years of operation, ESA's International Gamma-Ray Astrophysics
Laboratory (INTEGRAL) Space Observatory has unveiled a new soft Gamma ray sky
and produced a remarkable harvest of results, ranging from identification of
new high energy sources, to the discovery of dozens of variable sources to the
mapping of the Aluminum emission from the Galaxy Plane to the presence of
electrons and positrons generating the annihilation line in the Galaxy central
radian. INTEGRAL is continuing the deep observations of the Galactic Plane and
of the whole sky in the soft Gamma ray range. The new IBIS gamma ray catalogue
contains more than 420 sources detected above 20 keV. We present a view of the
INTEGRAL high energy sky with particular regard to sources emitting at high
energy, including Active Galactic Nuclei (AGN), HESS/MAGIC counterparts and new
view of the cosmic gamma ray diffuse background.
