A UNESCO World Heritage Site, the Centennial Hall (Hala Stulecia) was built in 1913 by Max Berg to commemorate the centenary of Prussia's wars against Napoleon. Its enormous reinforced-concrete dome was a landmark in early modernist architecture and influenced a generation of engineers and architects across Europe and the United States.
The hall sits at the centre of a wider park designed by the same architect, with a pergola, an artificial lake, and the city zoo all within walking distance. The interior is still used for concerts, sporting events, and trade shows; a Discovery Centre on the lower level explains the building's history and engineering. Outside, the surreal pin-thin Iglica spire stands at the entrance, added in 1948 to obscure the structure's German imperial associations.