The Hotel del Coronado is a stunning Victorian beachfront resort hotel in the very southern California city of Coronado, just south of San Diego. It was only four years open when a beautiful young woman named Kate Morgan checked in on November 24th, 1892. She was apparently very ill for the time she spent at the hotel, and it was later speculated she had taken a large dose of quinine in an effort to induce miscarriage of an unwanted child. That she was distraught there was little argument, so when she was found on the outside steps leading to the beach on November 29th, with a single bullet hole in her temple and a gun nearby, the death was quickly ruled a suicide. From that point on, strange phenomena have been reported at the hotel: strange noises, lights flickering on and off, and even the occasional ghostly woman in Victorian garb wandering the halls.
It is worth noting during my research on this story that the particular room number where most of the phenomena is witnessed varies from account to account. Whether because the accounts are second hand (and many of them are), or whether there is confusion due to the changing of the room number over the years as the hotel has expanded, I cannot say.
It still remains one of the most famous ghost stories ever