The meeting will run through July 12 and debate contentious issues like Palestinian motion to deny Israel sovereignty over Jerusalem and the level of protection Poland gives its pristine Bialowieza forest.
UNESCO Director-General Irina Bokova and Polish Culture Minister Piotr Glinski opened the session today in a ceremony at the Renaissance Wawel Castle in Krakow, a historic city on the UNESCO World Heritage site.
Earlier, they viewed Poland's most precious painting, Leonardo da Vinci's "Lady with an Ermine," which the state bought last year from the aristocratic Czartoryski family.