Here's for where I'm from, Kenosha, Wisconsin.
Kenosha - Durkee Mansion / Kemper Hall - Sightings of nuns peering out from behind the windows. In the late 1800 and early 1900 this was used as a school for girls - which was run by the nuns.
Kenosha - Holy Rosary Catholic School - During the night, there are noises in the pipes in all the bathrooms, hot and cold spots, wierd smells down by the cafeteria that are on and off, a hearing of footsteps has been heard late at night by janitors, and in the Computer Lab/Library books have been tossed across the room laying everywhere.
Kenosha - Pleasant Prairie - Paupers Cemetery across from the police station on highway H. - The ground is giving way because the wood coffins that are unknown are buried in are rotting away. At night you can hear the moans and sighs of the unknown and un-named John and Jane Does that die alone, without anyone to claim their bodies or mark there last resting place.
Kenosha - Rhode Opera House - There are reports of noises and voices and other occurrences, accompanied by an apparition of a man.
And here's for where I am now, Rapid City, South Dakota:
Rapid City - Alex Johnson Hotel - Built in the 1920's, the Hotel is said to be haunted by many ghosts including the original owner. Employees tell of noises, items moving, and a woman seen on the eighth floor. Guests have told of strange happenings especially on the eighth floor, pianos playing themselves, crying in a room that a woman supposedly jumped out of the window on her wedding night.
Rapid City - Ellsworth Air Force Base - Moving objects and shadowy figures observed here.
Rapid City - Hooky Jacks/Phatty McGees Restaurant and Bar - Hooky's is the oldest building in Rapid City, built in the late 1800's. There have been reports of noises - people talking, footsteps, and chairs moving around all when no one is there. Bartenders report of seeing people walk by only to find that there is no one around, also things that are pushed very far back from a ledge mysteriously fall.
Rapid City - Old Rapid City High School - now Dakota Junior High - The heater room said to be haunted by football coach and team that had died years ago in a plane crash. - UPDATE: The story is in 1968 or 69, on St. Patrick's Day, the cheerleading squad and their coaches were killed in a plane crash at Rapid City Regional Airport while returning from the state AA's boys basketball tournament in Sioux Falls. It was a private plane owned by one of the cheerleaders' father. Now there is an award given out at the state basketball tournaments every year to the cheerleading squad with the best spirit, called the Spirit of Six Award and is in honor of the 6 cheerleaders who were killed in the crash. It is the third floor gym of the school, which is supposedly haunted because that is where they used to practice.
Rapid City - Rushmore 9 Movie Theater - many employees have had strange interactions with paranormal activities in both the projection room and the main halls. Shadows of human like figures and balls of floating light have been seen by friends and workers alike. Reason for haunting unknown.
Rapid City - Sioux San Hospital - Sioux San was a boarding school, many many years ago for Native American children and a sanitarium for TB patients many years later. It is now an out-patient hospital. It is said the voices and crying and apparitions of children haunt the third floor. These sightings have been seen by numerous night guards, who have quit because of the ghosts. There are numerous little graves on the grounds, of children who still need to go home to their families.
Rapid City - Stevens High School - the storage room is haunted by a ghost called "Sparky". -March 2007 correction: "Sparky" is a well-known figure who reportedly plays jokes in the theater. He snaps lights on and off and opens and shuts doors, rattling staff and students. Former students now in their thirties have reported he was named Sparky when they went there. A freshman at Steven's reports Sparky played tricks on them every time they were practicing for a concert. "He messed with the sound system, the lights, the doors, everything."
Rapid City - The Hotel Alex Johnson - This hotel is supposedly haunted by the ghost of a former hotel manager who leapt to her death from the roof in the 1930's. A ghost who stands at the foor of the room's bed at night haunts one of the rooms. Several hotel workers have reported poltergeist activity on the hotel's top floor. This floor is currently used for storage, and workers have heard furniture moving around and lights flickering on and off. One employee reported having a chair thrown down the stairwell at him from the top floor doorway when there was no one on the floor at the time. Several employees have quit because of the apparitions.
By the way, I've been to Kemper Hall, Holy Rosary, and Pauper's Cemetery in Kenosha, and the Alex Johnson Hotel in Rapid City. To top it off, I LIVE ON Ellsworth Air Force Base! I have personally witnessed a few things, and have had much more told to me by residents of the airmen's dorms and base housing.