A massive and inexplicably undeveloped tract of greenery directly west of the Old Town, the Błonia is a huge, triangular open space measuring nearly 50 hectares. Technically a park, although lacking any trees or other defining characteristics, the Polish name ‘Błonia’ denotes ‘meadows’ – something of an amiable linguistic redressing of the Błonia’s true and unchanged historical function: it’s a cow pasture. The area’s ability to survive to modern times as the largest city centre open space in Europe can be accredited to a perfect storm of boggy undesirability, a centuries-long ownership dispute, and finally a medieval legislative wrinkle. Used by locals to graze cattle even midway into the 20th century, when the now-defunct Cracovia Hotel was built next to it in 1965 the city moved to permanently ban unfashionable bovines from the Błonia, only to find themselves obstructed by an apparently still legally binding 14th century decree by Queen Jadwiga which they would have to sort out with Warsaw. Warsaw not being the most cooperative or expedient bureaucratic partner in those times, city council decided to stick with the status quo, making it perfectly acceptable for you to air old Bessie on the Błonia to this day. Though a great idea for a city-wide one day annual event (called ‘Bovines on the Błonia’, tell the mayor to get in touch with my agent for more details), these days you’ll find the green triangle has primarily become the favourite leisure space of dogs and their frisbee chasing, ball playing owners, while the perimeter is a popular track for cycling, running and roller-blading. Protected as a National Heritage Site since 2000, the Błonia is ideal for large-scale outdoor events, hosting numerous concerts, rallies and – most notably – historic open air masses by Pope John Paul II, and now Pope Francis during late July's World Youth Day celebrations.