Graz is the capital of Styria and second-largest city in Austria after Vienna. On 1 January 2017, it had a population of 320,587. In 2014, the population of the Graz Larger Urban Zone who had principal residence status stood at 605,143. Graz has a long tradition as a "university town": its six universities have more than 44,000 students. Its "Old Town" is one of the best-preserved city centres in Central Europe. Politically and culturally, Graz was for centuries more important for Slovenes than Ljubljana, the capital of Slovenia, and still remains influential. In 1999, Graz was added to the UNESCO list of World Cultural Heritage Sites, and the site was extended in 2010 by Schloss Eggenberg. Graz was sole Cultural Capital of Europe for 2003 and got the title of a City of Culinary Delights in 2008.