A massive underground transformation is currently underway at the intersection of Queen Street West and Spadina Avenue, where excavation crews are carving out what will eventually become one of the busiest stations on the upcoming Ontario Line. In a recent construction committee presentation, Metrolinx provided an inside look at the cavern now taking shape beneath the intersection. Although it's difficult to picture it now, the enormous underground hole will one day house the Queen-Spadina station platform and connect the Ontario Line tunnel to the station's north and south entrances. The structure will eventually serve as a key passageway for riders accessing the Ontario Line platforms. According to the provincial government, these buildings will deliver approximately 214 new housing units and 60 new jobs, with direct access to both the underground station and TTC streetcar service.