Vietnam's bustling largest city sets the cultural and economic pace for the country. The former Saigon boasts charming French colonial architecture and wide boulevards, usually thronged and choked with traffic. Taxis are an option for seeing the sprawling city. The War Remnants Museum shows the Vietnam War through Vietnamese eyes. Don't miss the impressive Jade Emperor Pagoda. Go to the frenetic Ben Thanh Market for food, flowers or frogs. Tour through the Mekong Delta, past rice paddies and houseboats.

Da Nang is laid-back and friendly, maybe because everyone you meet has just finished an amazing meal. Culinary tours are a hugely popular way to experience literal local flavor. After you’ve stuffed yourself with bold noodle soups and savory street foods, walk it off by exploring the limestone caves and Buddhist grottos of the Marble Mountains.

The charming Vietnamese capital has aged well, preserving the Old Quarter, monuments and colonial architecture, while making room for modern developments alongside. Hanoi may have shrugged off several former names, including Thang Long, or "ascending dragon," but it hasn't forgotten its past, as sites such as Ho Chi Minh's Mausoleum and Hoa Lo Prison attest. Lakes, parks, shady boulevards and more than 600 temples and pagodas add to the appeal of this city, which is easily explored by taxi.

This city on the central Vietnamese coast is a well-preserved example of the important Southeast Asian trading port it was from the 15th-19th centuries. Already a common stop for backpackers, it is becoming better known to tourists. On the 14th day of each lunar month, the town trades its electric lights for traditional colored lanterns. Sights include the Japanese Covered Bridge and the Quan Cong Temple. Let the town’s expert tailors make you some bespoke clothing.

Nha Trang is best known for its beautiful sandy beaches. But visitors will also find amusement parks, mud baths, golf, and the historic Po Ngar temple complex, as well as a variety of hotels and restaurants. Adventurous foodies can sample bun cha ca, a soup made from sailfish and jellyfish.