The latest additions to its World Heritage list. The following are some of the recent additions.

Churches of the Pskov School of Architecture (Russia)

The structures, many of which are churches, were all designed by the Pskov School of Architecture. It was a leading school of building design in the country, especially in the 15th and 16th centuries. Some elements common to Pskov architecture date back to the 11th century.

Babylon (Iraq）

The ancient city of Babylon is gaining World Heritage Site status. The city was once a main tourist site before Iraq suffered several wars. The 4, 300-year-old city is where dynasties have risen and fallen since the earliest days of settled human civilization. UNESCO Says the site "offers a look into one of the most influential empires of the ancient world".

Writing-on-stone（Canada）

Canada’s   Writing-on-stone monument has a large number of protected rock paintings and rock carvings. Some of them are 2, 000 years old. The markings were left by Blackfoot Native Americans, who lived in parts of Western Canada and the far northern United States. The land that makes up Writing-on-Stone is filled with rock posts that have been formed into "spectacular shapes" by erosion （侵蚀）.

Party and Ilha Grande（Brazil）

The historic coastal town of Party and the island Ilha Grande are already popular places for visitors to Brazils Rio de Janeiro state. Party was the final stop along the Gold Route, along which gold was shipped to Europe in the 1600s. The area is also home to a huge number of animals, some of which are in danger now.

World heritage is a tricky thing to protect. Even when something makes it onto UNESCO's list, other factors can still put it at risk of being damaged. The environment, climate change, tourists and development-all these can affect world heritage sites.

Recently, the National Geographic listed the best-and worst-protected heritage items in the world.

The Kathmandu Valley in Nepal scored last because the ancient temples there are surrounded by modern construction and dense air pollution.

Sometimes it is difficult to protect a world heritage site because the factors that threaten it, like climate, are hard to control. The Great Barrier Reef in northeastern Australia;for example, is suffering because of ultraviolet(紫外线的)sun rays coming through the hole in the ozone layer(臭氧层).

These rays affect the coral(珊瑚)there and kill off smaller ecosystems. There are things that can be done to preserve the life in the reef and help it survive, but repairing the hole in the ozone layer itself-the root cause of the problem-would be a difficult task.

Often the biggest damage is done by people. The Amazon Rainforest, for example, is threatened by companies wanting to chop down its trees, some of which have been there for centuries. Mining companies want to dig deep into the Amazon basin to reach the valuable resources there.

The cost of all these human actions is enormous. It's not just that whole species of animals are disappearing, or that natural beauty is being destroyed. Scientists have not had the chance to study all the plants in the Amazon, and believe some could hold potential cures for diseases.

The area is now called the Central Amazon Conservation Complex and there are rules banning or limiting destructive practices. But people-often ignore them and the destruction goes on

However, many UNESCO sites are success stories of how world heritage can be protected. The Alhambra Palace in Spain and Te Wahipounamu in New Zealand are great examples of how UNESCO and the local community can work together to save priceless landmarks. Both gained top spots on the National Geographic list as the best-protected heritage sites in the world. “Local people are all active protectors. All tourists need reminding that they are entering an exceptional place, that it is a privilege to be there, “ commented the magazine.

China is making great effort to protect its cultural relics. In early May, State Administration of Cultural Heritage (SACH) added 1,943 unmovable cultural relics sites to the list. So the number of these sites on this list will increase to 4,295.【小题1】The newly added sites were reviewed(评审) by more than 130 experts. They spread around Shanxi, Henan, Hunan, Hebei and Jiangsu provinces, including 795 pieces of ancient architecture and 516 ancient ruins.【小题2】In an interview, the head of the SACH said that new types of cultural relics sites have been newly listed to get protection at first, including industrial relics, rural architecture and cultural landscapes.【小题3】For example, some are in the north China’s Inner Mongolia Autonomous Region.Despite great achievements during the years of effort, problems still exist.【小题4】Historic relics get stolen and antiques are taken abroad secretly.The head of the SACH said that people has faced a challenge to the protection of cultural relics for a long time. So, balancing the relationship between economic development and protection of history is important. 【小题5】 He also used good examples of protection, describing how some cultural relics sites have become education bases for young people and popular tourist places, where a lot of people spend their holiday.