Since high-mass star formation proceeds in a clustered mode at on average large distances, high angular resolution is essential to spatially dissect massive star-forming regions and to constrain the physical processes forming high-mass stars. I will present recent interferometric observations of massive star-forming regions obtained with the Submillimeter Array (SMA), Plateau de Bure Interferometer (PdBI) and the Australien Telescope Compact Array (ATCA). Topics covered will be massive accretion disks, hot core chemistry, Infrared Dark Clouds at the onset of massive star formation, and multi-wavelength continuum studies.