Whether you believe in extra-terrestrial life is one thing but seeing something mysterious flying high above is another. People often spot unknown things in the sky but in Canada, most of those reports come from residents of Ontario.

"It hovered and looked like it is surrounded in a fog, then suddenly just disappeared into itself," one witness said.

Roswell incident, to Area 51, to films like 'Independence Day', the USA has always been seen as the hub for UFOs. But aliens have apparently crossed over to the UK plenty of times. From glowing dragons to Winston Churchill's panicked reports,