The Ministry of Culture is tasked with preserving the nation's cultural and natural heritage and overseeing its development. Further activities supporting the development of culture are undertaken at the local government level. The UNESCO's World Heritage List includes ten sites in Croatia. The country is also rich with intangible culture and holds 15 of UNESCO's World's intangible culture masterpieces, ranking fourth in the world. A global cultural contribution from Croatia is the necktie, derived from the cravat originally worn by the 17th-century Croatian mercenaries in France.