  We report subarcsecond-resolution VLA imaging of four nearby spiral galaxies:
IC 342, Maffei II, NGC 2903, and NGC 6946. In each galaxy, compact radio
continuum sources are identified in the central ~ 15" x 15" region. These
compact sources are responsible for 20 - 30 % of the total emission from the
central kpc of the host galaxies at 2 cm, but only ~ 5 - 10 % at 6 cm. More
than half of the compact sources appear to be HII regions. The HII regions with
rising spectra must be fairly dense (n_i ~ 10^4 cm^(-3)) and are presumably
very young. The largest of these HII regions require the excitation of 500 -
800 O stars, within regions of only few parsecs extent. These clusters approach
the sizes expected for globular clusters. Thermal free-free emission from
compact sources contributes more significantly at 2 cm, while diffuse
synchrotron emission dominates at 6 cm. The radio HII regions are found near
the centers of giant molecular clouds in projection, and do not have obvious
visual counterparts.
