Vietnam (Việt Nam), officially the Socialist Republic of Vietnam (Cộng hòa Xã hội Chủ nghĩa Việt Nam) is a long, thin country in Southeast Asia. Its neighbouring countries are China to the north, Laos and Cambodia to the west. Once a lesser-known destination, Vietnam has become widely popular in recent years. With Hanoi consistently ranked among the world's top 10 destinations by TripAdvisor, one can now find European tourists as far as in Ha Giang, one of the most remote mountainous provinces.