Keywords: planetary seismology 

For nearly four years, NASA's InSight mission to Mars measured the red planet's vital signs. InSight's very broad band seismometer has detected minute ground vibrations from marsquakes, winds, and meteorite impacts. I present a selection of noteworthy seismic waveforms that contain key structural signals, including surface waves traveling across the northern highlands as well as body waves interacting with the core and the mantle transition zone, and converting across crustal interfaces. This talk will highlight several key discoveries about the red planet's seismic activity and interior structure.