Picture the fresh, clean walls of a modern interior space. It’s hard to imagine they would hide anything special, but in the case of a former sports bar in St. Petersburg, Florida, some of them concealed a world of history, hidden for decades. When the walls came down during recent construction, they revealed century-old relics from a storied age: a telephone switchboard, a partial staircase, a double-sided fireplace, and an entire elevator with an elegant ceiling flecked with gold leaf. The artifacts are long-forgotten pieces of the Detroit Hotel, built…
