Central Africa has the newest World Heritage site.
On Tuesday, the United Nations Education, Science, and Cultural Organization (UNESCO) declared the Sangha Tri-National Protected Area complex (TNS) as a World Heritage Site for its density and diversity of rainforest wildlife. Formed by three contiguous national parks covering 10,000 square miles (25,000 sq km) in Republic of Congo (Brazzaville), Cameroon, and the Central African Republic, TNS is the first World Heritage Site to span three countries.
Read more: http://news.mongabay.com/2012/0702-tns-world-heritage.html