Tourism is an important element of economic activity in the country, contributing 7.5% of the gross domestic product. Vietnam welcomed over 12.9 million visitors in 2017, an increase of 29.1% over the previous year, making it one of the fastest growing tourist destinations in recent years. The vast majority of visitors in 2017, 9.7 million, came from Asia. China (4 million), South Korea (2.6 million) and Japan (798,119) made up half of all international arrivals in 2017.Vietnam also attracts large numbers of visitors from Europe with almost 1.9 million visitors in 2017. Russia (574,164) and the United Kingdom (283,537), followed closely by France (255,396) and Germany (199,872) were the largest source of international arrivals from Europe. Other significant international arrivals by nationality include the United States (614,117) and Australia (370,438). The most visited destinations in Vietnam are Ho Chi Minh City with 5.8 million international arrivals, followed by Hanoi with 4.6 million and Hạ Long, including Hạ Long Bay with 4.4 million arrivals. All three are ranked in the top 100 most visited cities in the world. Vietnam is home to eight UNESCO World Heritage Sites in Southeast Asia. In 2018, Travel + Leisure ranked Hội An as one of the world’s top 15 best destinations to visit.