I worked in a Borders Bookstore in Framingham, MA for a few years, and we had a few "odd spots" around the store. The worst was the electrical room on the second floor. I remember closing up one night with one of the keyholders, and she basically refused to go into the electrical room, and told me that since I was the manager I should do it. She said it gave her bad vibes. Not every single time I went in there, but often, it just creeped me out. I wouldn't go unless someone else was outside the door.
That might just be something about electromagnetic vibes and such. Years ago I was out walking with some friends at night. We were heading over some country roads to get to an old pike/beacon place. Apparently (only found this out later) it was a UFO hotspot too and even had witches doing something with it. But it's not about that...
As we walked up to some pylons I started feeling quite strange. For the life of me I can't describe it but I couldn't continue walking in that direction. Personally, even given my track record, I just think it was the electromagnetic-ness of the pylon making me a little edgy. That said my friends didn't feel the same. *shrugs again*