  In the 1998-99 flight, BOOMERanG has produced maps of $\sim 4 %$ of the sky
at high Galactic latitudes, at frequencies of 90, 150, 240 and 410 GHz, with
resolution $\simgt 10'$. The faint structure of the Cosmic Microwave Background
at horizon and sub-horizon scales is evident in these maps. These maps compare
well to the maps recently obtained at lower frequencies by the WMAP experiment.
Here we compare the amplitude and morphology of the structures observed in the
two sets of maps. We also outline the polarization sensitive version of
BOOMERanG, which was flown early this year to measure the linear polarization
of the microwave sky at 150, 240 and 350 GHz.
