Hai Phong
Hai Phong is a major port city in northeastern Vietnam, across from Cat Ba Island. Its leafy boulevards are lined with French colonial–era landmarks such as the neoclassical Opera House and Queen of the Rosary cathedral, dating to the 19th century. Hai Phong is also home to Du Hang Pagoda, an elaborate Buddhist temple, and Hai Phong Museum, which explores the city's long history.