About 5 years ago, in early December my sister moved into a cottage in Wales. It's next to a church that's around 1000 years old. Before that church was a church, the land was thought to be a Druid place of healing or something...the Druids worshipped there. A lot of churches were built on land which previously had Druidic holy places on them.
Anyway...she moved in with her DH and their kids. On the first night in the cottage, the kids went to bed but kept calling down that they could hear music or singing. Sister went up and sure enough, she could hear it too but only in the girls' room which looked out over the church. It was dull...very distant. It faded away after a while.
During that first week in the cottage she would hear odd bumps and thumps at night...the house (Which was only 200 years old) is very creaky so she didn't think a lot of it...but one she heard a noise in the kitchen that sounded like someone knocking on the back door.. She was the only one awake....she went through to the (tiny) kitchen and stopped at the threshhold because by the back door INSIDE her kitchen, there was the image of a man standing there....in his OWN rain.
He was not solid but semi transparent and completely unaware of her...it was raining only around him...she said it was like a film projection. He wore a dark cloak and seemed to be about 40 or so.
As she watched (only for a second or two) he just faded away.
She told her new neighbour who said that where my sister's kitchen was, was actually a newish addition...extended in the 60s...and that the land there had been a place where coachmen came to change horses etc.
She probably saw an old coachman waiting in the rain to come in. 
She hasn't seen him since but around Christmas, they do sometimes hear that distant singing. The church is in use but it's never heard on the nights when there's a congregation...usually much later during the evening...and this is a very remote hamlet. No road through it...there's one road TO it but then fields and countryside.
The singing isn't a tune she can make out, it's a sort of droney singing. I reckon she's hearing either Druid ghosts chanting or some old Tudor carols from the church!
She's dug up bones in her yard more times than she can count. THe land next to her garden is literally a graveyard so the bones have shifted over the centuries.
She asked me to house-sit once and I said no! 