secret laboratory

• hiddenKept out of sight
• bunkerReinforced subterranean stronghold
• experimentsTests of a hypothesis
• classifiedRestricted from disclosure
• undergroundBelow ground or countercultural

research · scientist · chemicals · beakers · clandestine · covert · lair · facility · restricted · hazmat · specimens · formulas · mad scientist · vault · fluorescent · sterile · containment · prototype