Milford Sound

One of New Zealand's best-known tourist attractions, Milford Sound attracts about 500,000 visitors each year, and features rocky cliffs, cascading waterfalls and dense forests.

Black Forest

Located east of the Rhine River(莱因河[欧洲西部]), between the towns of Karlsruhe(卡尔斯鲁厄), Germany and Basel(巴塞尔), Switzerland, Black Forest offers areas jam-packed with evergreens and open farmland. "It’s not nature wild and remote, but bucolic(田园风味的) and picturesque," according to Lonely Planet's Web site.

Halong Bay

Because of its abundance of precipitation(降雨量), most of the islands of Halong Bay are uninhabited.(无人居住的) Located in Quang Ninh province, Vietnam, it features thousands of limestone（石灰石） karsts and isles in various sizes and shapes.

Dead Sea

The shoreline surrounding the Dead Sea sits at 1,200 feet below sea level and is the lowest piece of dry land in the world. Environmental organizations warn that the Dead Sea will disappear in 50 years if its level continues to drop at the current rate.

Vesuvius（维苏威）

It is the only volcano on Europe's mainland to have eruped in the past 100 years, but Italy's Mount Vesuvius is best known for its eruption in 79 AD. The explosion and its aftermath destroyed the city of Pompeii(庞贝).