Mate, have you heard about the fleet of passenger aircraft parked at Las Vegas McCarran International Airport that you can't buy a ticket for?
These aircraft don't carry any company logos - they're painted plain white with a red strip down the side - and if you were able to board one you'd be sworn to secrecy about why you were taking flight.
The reason these planes - which are mostly Boeing 737 planes - are kept secret is because they serve America's most secret military base, Area 51 in Nevada.
Video credit: YouTube / HansFaulkner
They are run by the United States Air Force and operate from a private terminal at McCarran airport, according to Flight Club.
Conspiracy theorists have long claimed that the base houses UFO technology, with numerous claims of alien abductions in the area.
Speaking about the Area 51 base Nick Pope, who used to investigate UFOs for the British Ministry of Defence, told the Daily Mail: "Area 51 exists - it's part of a military testing range in Nevada - and because of the remote and sparsely-populated location, it's where various secret prototype aircraft and drones are developed and test flown.
"The UFO and conspiracy theory community think it's the place where crashed UFOs are kept and where the US military are trying to back-engineer this alien technology, and even Hillary Clinton has said that if she's elected President she'll look into the claims.
"Sadly, despite the rumours, I've seen no evidence that we've recovered any extraterrestrial technology.
"Having been namechecked in movies like Independence Day, Area 51 has become part of pop culture and the secret is out, so if there ever was alien technology at Area 51, I suspect it's been moved to a location we've never heard of."
Once the planes reach Area 51 the passengers disembark into the facility little is known what happens.
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Words by James Dawson
Topics: Area 51, Planes, Aliens