Just to set the record, I don't believe in ghosts, but I love ghost stories.
Anyways, this didn't happen to me but instead a friend of mine while he was living in Japan. Supposedly Japan is home to a few "supposed" haunted places. One of them being a vacant, broken down old hospital not far outside Tokyo. My friend was with a group of people and one of them knew about this place, so they decided to go on an adventure and visit this haunted hospital. When they got there they could see right away why it was labeled as a haunted place. It was the perfect setting for a horror movie. A huge wall surrounding a graveyard that led up to a very shady looking hospital (why there is a graveyard infront of a hospital, i'll never figure out). The hospital itself had no outside walls anymore, you could see right into the rooms and the other side from the road. I'm not sure how many floors there were but I seem to remember about 6 or 7 floors. My friends group climbed the wall and into the graveyard and dared each other to individually go into the hospital, trek to the top floor, and wave down to the group to show that they made it successfully without pissing their pants, and then come back down while the next person goes.
The first guy went in and within about 10 or so minutes made it to the top floor. The group could see him clearly waving at them and he came back down without incident. They asked him if he saw anything cool or scary and he told them the atmosphere is creepy but otherwise its totally empty. The second guy went in and they watched him go from floor to floor climbing up the top going through the desolate rooms. He made it to the top and started to wave at the group below. They looked up at him waving but noticed something on the floor beneath him.... a second person waving at them. It was night and they couldn't make out any features of the second person, it was just a complete dark figure mimicking the guy above. They were watching both the first and second guy the entire time and could see right through into all the rooms and there was no one there before. They don't know where this person came from or how they got there. They yelled at the friend to RUN back down as fast as he could and they took off jumping the wall and leaving him behind LOL.
The guy couldn't hear them but after he saw them running he didn't hesitate and took off down all the floors to the bottom and joined up with them.
The guy said on his way down he didn't see anyone but could hear footsteps echoing other than his.
I'm not the greatest story teller but when my buddy told me that story, I was scared shitless the rest of the night haha.
I'm sure some of you have some stories of your own similar to this! Let's hear em
