Home to nearly nine million and powering an economy that exceeds both Hong Kong's and Thailand's, Osaka packs quite a punch. The confident, stylish city is a shopping hub, with fabulous restaurants and nightlife. It's an ideal base for exploring the Kansai region; Kyoto's World Heritage Sites, Nara's temple and Koya-san's eerie graves are within 90 minutes by train. Top city attractions include the aquarium, Osaka Castle, Universal Studios Japan and the futuristic Floating Garden Observatory.

Commerce keeps Nagoya’s downtown popping with life, but there’s more than just manufacturing to this industrial powerhouse. Nagoyans meet for plates of crisp-friend miso katsu; make weekend trips to nearby Shinto shrines; and count down the days to the city’s autumn Nagoya Festival.

Delectable dim sum, floating islands, and a one-of-a-kind skyline are just some of Hong Kong’s unique features. Get an eyeful of traditional Chinese architecture in Ngong Ping village, then take the tram to the tippity-top of Victoria Peak for unparalleled views. The rocks and gentle hills of Nan Lian Garden will bring you inner peace, as will a calming cup of tea in a Stanley café. Become one with everything at the Chi Lin Nunnery, a serene Buddhist complex.

China’s third-largest city is the capital of Guangdong Province and a thriving commercial centre. Its location on the Pearl River and proximity to Hong Kong has made Guangzhou a strategic port for centuries. Glimpse old temples and gleaming steel towers on an architectural tour. Visit one of four Chimelong theme parks for thrills and chills. Once called Canton, Guangzhou is considered the home of traditional (read Cantonese) “Chinese food.” Foodies will find more restaurants per capita here than anywhere else in China.

This former colonial resort provides a respite from Southern Vietnam's year-round swelter. The town is full of beautiful French-era buildings and surrounded by pine trees and farms growing exotic vegetables and flowers. It's worth the trip just to escape the heat for a few days.

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.