Over the volcano Popocatepetl flew a UFO

The volcano Popocatepetl is known for the constant appearance of a large number of different UFOs over it. It remains a mystery why the volcano Popocatepetl attracts the attention of unidentified objects of various shapes and sizes.

Perhaps in the depths of the volcano there is a base of aliens and UFOs use the muzzle of the volcano as an entrance to it.