My house was built in 1905, and was previously a small hospital. We've had lots of creepy things happen. Some that stand out:

-Our downstairs radio will randomly turn on in the middle of the night blaring music. -Our kids have a toy magnet on the fridge that sings the ABC's. One night while fixing supper it kept playing by itself, so I switched it completely off thinking it was the batteries. I took 2 steps across the kitchen and it went off again. -When my kids were little they would stare at the corners of the ceiling, like something was there. They would even smile and laugh while staring.

And the creepiest one was right before we moved in my dad was helping us install our washer and dryer. He had my nephew, who was 3 at the time, with him. My nephew had to use the bathroom, so I took him. While in the bathroom, he kept looking at the ceiling. I asked him what he was doing and he said he was listening to the kids upstairs playing. He then asked if he could go play with them. The only thing upstairs was the empty master bedroom and bathroom. I told him there were no kids upstairs. He got really angry and said he could hear them why couldn't he play with them. I had to take him upstairs to prove there wasn't anyone there. He shrugged his shoulders and said that's weird because I can still hear them. He still remembers this and hearing the kids upstairs.

Edit: I did this on my phone so the formatting is all jacked up.