Entrance to Alien Base Found on a Rock Wall? "Unknown Location"

Are we really facing an entrance to an alien base that tries to camouflage itself with the door made in rock?
Due to the size of the circular stone door, one can imagine the entry of small UFOs or alien probes.
Source: https://ufosonline.blogspot.com/
Read here: https://helenastales.weebly.com/blogue/entrance-to-alien-base-found-on-a-rock-wall-unknown-location

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