Old Dudley Road in Billerica, Massachusetts, is known for its eerie urban legends, which have circulated for decades and earned it a reputation as one of the state's most haunted roads. The stories have attracted thrill-seekers, leading to trespassing and vandalism on private property along the route. The most widespread and debunked legend involves the spirits of nuns who are said to haunt a former convent on the road. The stories include tales of nuns being hanged in trees, which are baseless rumors. Historians have confirmed that a convent did not exist in the area until decades later than the supposed hauntings began. Legends of satanic rituals being performed in the woods surrounding the road have also circulated, contributing to the road's dark reputation. The urban legends also include stories of a house along the road that appears to be sinking into the ground. However, this is said to be an optical illusion rather than a sign of a supernatural occurrence. The remnants of the original "Old" Dudley Road are reportedly patrolled by a spectral horseback rider in Colonial attire.