This 3-D display shows a particle event at ProtoDUNE. The video shows the full size of the ProtoDUNE-SP detector (white box) and the direction of the particle beam (yellow arrow). Particles from other sources (such as cosmic rays) can be seen throughout the white box, while the red box highlights the region of interest: in this case, an interaction resulting from the particle beam passing through the detector. Event information, such as the momentum of particles in the beam and time of interaction, are located in the lower left corner. For curious minds that want to play with the interface, a selection of 3-D events from ProtoDUNE-SP are available in an online gallery developed by Chao Zhang of Brookhaven National Laboratory.