10. Le Pavillon Hotel- New OrleansIt was Built in 1907. It is reportedly haunted by at least five different ghosts. The most famous of these is Adda, a tearful teenage spirit killed by a runaway carriage who has been known to bump into people in the lobby, claiming to be lost, then vanishing.
Adda might predate the construction of the hotel itself, witnesses claim she's dressed in the style of the mid 1800s. A gray haired old woman in a black dress has been spotted, as have a spectral couple holding hands. Some say they can smell the man's cigar smoke and smell the lady's perfume.
Most amusing of all is the hotel's resident hippie—a young man with colorful garb, bell bottoms, and no shoes, who is frequently seen running around and disappearing into the walls. The hippie ghost is a prankster, often charged with hiding objects and yanking blankets off unsuspecting guests.