and various temporary exhibitions, concerts, film projections, and theatre performances. The Centre has a branch of Lukasz Gornicki's Podlaska Library dedicated to the Esperanto language. The Sybir Memorial Museum () is a historical museum opened in 2021 and dedicated to the memory of Poles as well as people from other nationalities who were the victims of forced deportations to Siberia perpetrated by Russia and the Soviet Union. The Alfons Karny Sculpture Museum contains a collection of sculptures by Białystok native Alfons Karny. Parks and green spaces Around 32% of the city is occupied by parks, squares and forest preserves which creates a unique and healthy climate. The green spaces include: Branicki Palace () is a historical edifice and park in Białystok. It was developed on the site of an earlier building in the first half of the eighteenth century by Jan Klemens Branicki, wealthy Polish Crown Hetman (highest military leader of Poland), into a residence suitable for a man whose ambition was to be elected king of Poland. The palace complex with gardens, pavillons, sculptures, outbuildings and other structures and the city with churches, city hall and monastery, all built almost at the same time according to French models was the reason why the city was known in the eighteenth century as Versailles of Podlaskie (). Planty is a park created between 1930 and 1938, under the auspices of the then voivode Marian Zyndram-Kościałkowski in the areas adjacent to Branicki Palace. The modernist composition of the park was designed by Stanislav Gralla. Architecture The various historically driven changes have had a very significant influence on the architectural space of the city. Most other Polish cities have suffered similarly, but the processes in Białystok, have had a particularly intense course. Numerous historic works of architecture no longer exist, while many others have been rebuilt to their original configuration. Very few historic buildings of the city have been preserved – the sights are merely an echo of the old historical shape of Białystok. Main sights include: Palaces: Branicki Palace, Branicki Guest Palace, Lubomirski Palace, Hasbach Palace, Nowik Palace Townhall Catholic Cathedral St. Roch Church St. Adalbert Church Orthodox Cathedral Daughters of Charity Monastery Former Arsenal Former Masonic Lodge Sports The city has both professional and amateur sports teams, and a number of venues where they are based. Jagiellonia Białystok is a Polish football club, based in Białystok, in the Ekstraklasa (Poland's top