Haunted houses have always remained a mystery with many stories hidden in the unrevealed truth of decades. These places have been haunted by spirits of people who died or were killed under unverified and unclear circumstances. There are a lot of places that have been explored for haunted house investigations around the world. The most haunted places in America are a combination of houses, hotels, prisons and museums.

Hot Lake Hotel in Oregon once served as a destination of thermal waters. Thousands of visitors often came to seek relaxation at hotel which included a hospital. An unexpected fire in 1934 destroyed a major part of hotel structure and hospital taking making lives. It is believed to be haunted by hotel staff, holiday makers and medical staff who perished in the fire. Screaming and crying sounds were often heard while piano music would start playing in one of the rooms.

Ohio University is another place for haunted investigations. A number of places are visited by ghosts of people who were tortured and killed in the Athens Lunatic Asylum.

Bannack is considered a haunted town of Montana. The native Indians mainly outlaws were executed in public square. A woman named Dorothy who drowned in Creek after her apparition and infant deaths caused by epidemic have made it a place of ghosts.  

Moundsville Prison is West Virginia is one of the most haunted places in USA. A large number of paranormal investigators often visit the place where most of Native Americans were buried. Though prison is closed, many former inmates and prison staff have seen a man moving around the prison compound. The guards have even reported about phantoms and strange noises, sounds and voices in the premises.

Union Cemetery in Connecticut is one of the most haunted cemeteries where people have often seen orbs and mists captured on their camera. Photographs and videos of “White Lady” spirit have surprised many who do not actually see her but lens has captured her movements.

Coral Gables Biltmore Hotel is another hotel that is visited by spirit of a mobster and a lady. The hotel elevator often sees strange things happening with the power going off, auto-open and auto-close of doors and strange sounds on the floor where Fatty Walsh, the mobster was killed while gambling. The lady in white often visits the rooms of visitors.

The Stickney House located in Bull Valley, Illinois was used by Stickney couple for spiritualism where they spoke with dead children quite often. The police staff housed here have often heard strange noises, self-movement of things, blink of lights and auto-operation of doors and windows.

One of the other haunted places of investigation is Villisca Axe Murder house where a family was slaughtered to death.

Magnolia Plantation in Louisiana is a National Historic site. However, ghosts of people living in main house and those practicing Voodoo are often wandering the area. Many paranormal people have spent nights studying such occurrences.

Haunted house investigation is one of the interesting topics usually explored by psychics and paranormals for their study and research.