WATCH: UFO enthusiasts gather outside Area 51 in the US

RACHEL, NEVADA – SEPTEMBER 21: Alien dolls are displayed at the Little A’Le’Inn during the ‘Storm Area 51’ spinoff event ‘Alienstock’ on September 21, 2019 in Rachel, Nevada. The event is a spinoff from the original ‘Storm Area 51’ Facebook event which jokingly encouraged participants to charge the famously secretive Area 51 military base in order to ‘see them aliens’. Two tiny desert towns not far from from the once-secret Area 51 are hosting related events this weekend. The military has warned attendees not to approach the protected Area 51 military installation. Mario Tama/Getty Images/AFP