Opinion polls from the past 30 years have consistently shown nearly 30 percent of people to believe in ghosts, while about 15 percent claim to have actually encountered one. From battlefields and prisons, to hotels, mansions and even bars - America has some of the most haunted locations in the world. Even in the afterlife, some "spirits" just refuse to ever leave their favorite haunts.

Famed ghost hunter ZAK BAGANS reveals some of America's most haunted places and recounts some of his memorable ghostly encounters.

He'll also talks abouta sweepstakes where youcan win the chance to join him for a night of ghost hunting.

For more information and to enter the sweepstakes, visit

"Ghost Adventures," airs onthe Travel Channel.