The name on the building isn't just a nod to the epic Zeppelin riffer; there's an actual black Labrador in the back room snoozing while his owners hold court for Houston's vinyl lovers. The little store located on South Shepherd caters to the classic rock vinyl fetishist, with a collection of Beatles and Stones memorabilia that would make your dad beam. At Black Dog you'll also get a complimentary rock history lesson, as co-owner Cliff more than likely has a story for every record in the store.