DESPITE recent news stories of a population exodus from Detroit, there are many reasons to make a pilgrimage to this struggling city right now — and not just because Eminem’s slick Super Bowl commercial showcased the inner strength of the Motor City. No video can portray the passion one finds on the streets of Detroit these days, where everyone from the doorman to the D.J. will tell you they believe in this city’s future. While certain areas are indeed eerily empty, other neighborhoods — including midtown, downtown and Corktown — are bustling with new businesses that range from creperies and barbecue joints catering to the young artists and entrepreneurs migrating to Motown, to a just-opened hostel that invites tourists to explore Detroit with the aid of local volunteer guides. In the historic Brush Park district, architecture buffs will find some lovely refurbished houses, and along Woodward Avenue, restored film palaces are a wonderful reminder that this city’s storied past includes not just automobiles, but also the entertainment industry. No urban enthusiast will want to miss the recovery that Detroit is now attempting.