No, Denver's Ghost Historic District isn't haunted — unless it's by the specter of real-estate agents flocking to a neighborhood in "Denver's only ZIP code that hasn't seen a market dip since 2007." That's according to This Old House magazine, which just touted the area in northwest Denver bounded by West 29th Avenue, West 32nd Avenue, Lowell Boulevard and Irving Street that was recently added to the city's historic roster as one of the country's "great neighborhoods." The district's tree-lined streets are filled with great old houses — Denver squares, bungalows and Victorians, some dating back to when developer and real-estate agent Allen Ghost purchased the area in 1887 and turned it into a streetcar suburb, touting its "unsurpassed" location. Today the location is still unsurpassed, with a host of shops and restaurants just a few blocks away in still-hot Highland.