The Van Ness House is one of the most haunted houses in America.
The house was built in Bodega Bay, California in 1862 by Miles Van Ness who made his fortune in the gold rush.
Miles' son Whitman Van Ness lost the family fortune, including the house, in the early 1900s.
At various times the house was later used as a brothel, a boarding house, a school, and a speakeasy (which is why it has a secret room).
Placed on a "one of the most haunted houses in America" list, the house attracts the attentions of a series of teenagers who are subsequently killed by the ghost of Whitman Van Ness. Whitman would then absorb the souls of the trapped spirits to increase his own powers. After he kills Annie Hawkins, Sam, Dean and the ghost of Bobby investigate and Sam and Dean destroy Van Ness and then after Bobby and Annie's ghost find the remains of Van Ness' victims, burn their bones to put them at rest.