The video description says it's Berkeley Castle, UK. Wikipedia states:
"Berkeley Castle is a castle in the town of Berkeley, Gloucestershire, UK. The castle's origins date back to the 11th century and it has been designated by English Heritage as a grade I listed building "
New South Wales Police were left with 'shivers down their spines' after watching CCTV footage captured at a station overnight. Moments after a garage door opens by itself, a broom appears from inside and starts moving as though of its own volition. The paranormal activity is still yet to be explained.
As Jenn says it's Berkeley Castle in UK. The question that always assails me in these cases where an entity of a certain "epoch" is apparently seen (speculating that it could be the middle age, or whatever it may be), is whether it is a self-aware entity, that is; "Oh I'm a knight riding to my castle" and interacts with others at a conscious level of their "medieval reality" or it's just the remnant of something that happened in another time. Well, are the rational questions that come up against these fascinating mysteries
In this case that I explain below it is more or less clear that he is a person who would have just "left his body", and who also his friends at the time of the accident "felt" him around.