I had an odd experience but it was not at a shopping mall. It was the first time I used the escalators that connected the area of the Brookfield Place to the Oculus at World Trade Center. It just was newly built. I didnt see anything but I felt this weird feeling that gave me the chills. I think it is all those lost souls who perished on 9/11. I was very sad. After that time, I never felt that again when I am there. Kind of weird.