Bydgoszcz is one of Poland's bigger cities, but it feels less obvious than Kraków, Gdańsk, or nearby Toruń. That is part of the appeal. The Brda River and old canal cut through the centre, leaving islands, quays, bridges, and waterside paths that make the city easy to enjoy on foot.
The city grew strongly under Prussian rule in the 19th century, when it was known as Bromberg, and much of its centre still has that solid brick-and-stucco confidence. Locals sometimes call it "Little Berlin", which is a stretch, but the architecture, broad streets, and industrial waterways do give it a different mood from Poland's older royal cities.
The best area is around Mill Island, the Old Market, and the Brda waterfront. Museums, Opera Nova, the granaries, churches, cafes, and riverside sculpture are all close together. Bydgoszcz also has a serious music scene, with the Pomeranian Philharmonic, Opera Nova, and the local Academy of Music giving the city more cultural weight than many travellers expect.