Don Lincoln has a video on the 4 detectors at the LHC.
As you watch this, don't miss the fact that these are "... technological marvels..." in themselves, and that high energy physics had to invent and make their own detectors and detection processes to advance the field. Detector and instrumentation physics have always been an integral part of experimental high energy physics, and one often sees students in this field that are actually working on detector physics.
As a consequence, high energy physics drives innovations and new applications that eventually leaks into the rest of the world. This is a point that is often missed by those outside of the field.