I will discuss the opportunities and advantages of the near-field terahertz time-domain spectroscopy and microscopy for direct experimental studies of terahertz electromagnetic resonances occurring on a micrometre scale. Micro-resonators are at the heart of numerous promising terahertz solutions, including the emerging metamaterial approach. Experimental studies of micrometre-scale terahertz resonances are essential, yet inaccessible to common far-field spectroscopic techniques due to extreme sensitivity requirements. The near-field approach allows for mapping the near-field patterns of terahertz resonant modes excited in individual conductive or insulating micro-objects. It gives access to essential parameters of micro-resonators, including their resonance frequency, local field enhancement and quality factors. Depending on the underlying physics of observed terahertz resonances, it allows for material and structural characterisation of micro-objects.