Area 51 is none of the above mentioned or suggested items, nor anything else referred to in any form of content which you, or another, may suggest or imply under any circumstance. It is a fictional location put forth like folk tales about the boogie man, werewolves, vampires, Martians, the moon landing, etc.
So says the Area 51 Code of Practice guideline book, section 3, paragraph 12: "Area 51 does not exist despite what others say and it is only a fictional location like any other fictional item or character out there and we are in no direct relation to the UN, three intergalactic alien races, marketing of 'Earth' bars on Mars or the asteroid that collided into the planet and caused the dinosaurs to move away because they thought it was a better idea than being wiped out, because WE don't actually exist which makes this book, ESPECIALLY this paragraph you are currently reading to not exist, so get off the dope you low-life hippie."
Which means I don't actually work for them or have any direct mind tracking influence from a bug implanted in my brain which controls various thoughts and actions.
MUWAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAH!!!!!!!!