Physical properties of the upper mantle, such as temperature and viscosity, in arctic regions influence glacial melting and sea level rise. These physical properties can be constrained using observations of the speed of seismic waves and how seismic energy dissipates (attenuation). Antarctica has a range of tectonic settings, similar to the variety of geology we see in the United States. Imaging the upper mantle in Antarctica at an adequate scale is challenging due to the remote and polar conditions of the continent. There are three regions in Antarctica with adequate seismometer coverage that sample the diverse tectonic settings across the continent. Generally, we find that regions without recent tectonic activity have fast seismic-wave speeds and little attenuation (similar to the north-central and eastern US), while regions with more recent tectonic activity have slow seismic-wave speeds and more attenuation (similar to the western US).