This strange object was recorded in Dublin by polish tourists, who were staying with their friends for a while. An object seems very true, although camera resolution doesn’t give you to clearly see its shape. When zoomed it’s visible that the UFO rotates on the axis and shrouded by some kind of a halo.
It’s noteworthy that it can’t be a helicopter, an airplane, a drone or a quadrocopter, which are sometimes confused with UFOs. This is most probably an object of extraterrestrial origin or some technology unknown to mankind.