The Whaley House in San Diego is known to be haunted.  At first glance, all once notices is primarily orbs in this photo.  But take a closer look, and you will see a vapor, like ectoplasm, floating around the bed: 

"My name is Erin Amilibia and last month I took a trip to the Whaley House in San Diego.  During my visit, I took many pictures and they all pretty much looked the same except for one.  This particular photo was taken in the children's bedroom.  After reviewing them, I noticed an apparition the size of a small child.  If you zoom in, there appears to be two legs, an arm, and a head.  I later researched the deaths which took place in the Whaley House and was very surprised to know their 17 month old son died in his room."