sentences:  The city is part of the Bydgoszcz–Toruń metropolitan area, which totals over 850,000 inhabitants.Bydgoszcz is the seat of Casimir the Great University, University of Technology and Life Sciences and a conservatory, as well as the Medical College of Nicolaus Copernicus University in Toruń.It also hosts the Pomeranian Philharmonic concert hall, the Opera Nova opera house, and Bydgoszcz Airport.