Białystok is the largest city in north-eastern Poland and the capital
of Podlaskie Voivodship. It is the gateway to many natural attractions of the
Podlasie region, known collectively as the Green Lungs of Poland, including
Biebrza and Bialowieza national parks. Bialystok is also the place of birth of
Ludwik Zamenhoff, the inventor of the artificial language Esperanto. The
city hosted an international Esperanto conference in 2010
