Showing my followers places in Star Trek they (probably) haven't seen before #1: Bottom of the intermix shaft
A stack of decks with no doors, accessible only through the little one-man lifts from the main engineering deck. And at the bottom, something flat and green. But what is it? (Pics from the Roddenberry Archive)
According to Starfleet Dynamics, it's the KR13-N matter/antimatter reactor, with the 24 antimatter bottles attached. Now you know.









