CO emission at the kiloparsec resolution of previous surveys and the “cloud scale” resolution of PHANGS–ALMA. The left panels show CO(2−1) emission measured by PHANGS–ALMA for NGC 2903 and NGC 3627 convolved to 1 kpc resolution, roughly corresponding to the resolution of previous large CO mapping surveys. The right panels show the CO(2−1) emission from the same galaxies at the typical 120 pc resolution of PHANGS–ALMA. Circles show the beam in each panel, and each map shows the maximum intensity of emission along a line of sight at 12.5 km s−1 velocity resolution. The high-resolution view shows clumpy structures corresponding to individual massive molecular clouds. The high-resolution images also show a strong influence of dynamical features; both galaxies have strong stellar bars and spiral arms.