Thailand’s largest island is an international magnet for beach lovers and serious divers, who enthusiastically submerge themselves in the Andaman Sea. Blue lagoons and salmon sunsets make for a dream-like atmosphere, and indeed, a vacation here can feel a bit surreal. Watersports are the most popular activities, though once you’ve had enough sun there’s still plenty to explore at the island’s aquariums, gardens, and Buddhist temples.

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.

The cultural hub of Malaysia, Kuala Lumpur is visually defined by the iconic Petronas Twin Towers, which, at 88 stories high, are the tallest twin buildings in the world and a vision of modern architecture. On the flip side, the Sri Mahamariamman is the oldest Hindu temple in Malaysia, its façade a colorful totem pole of iconography. Shopping at the Central Market is a joyful experience that involves haggling, handicrafts, and happiness.

The Singapore cityscape looks like it was ripped from the pages of a science fiction comic book. If you’re hungry for a true Singapore experience, sample the myriad street foods or take a cultural cooking class. The Botanic Gardens and the Gardens By the Bay offer a slice of horticultural heaven, and the observation deck of the Sands SkyPark makes you feel like you’re high above the clouds. The banks and walkways along the Singapore River bustle with local activity.

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.

Bali is a living postcard, an Indonesian paradise that feels like a fantasy. Soak up the sun on a stretch of fine white sand, or commune with the tropical creatures as you dive along coral ridges or the colorful wreck of a WWII war ship. On shore, the lush jungle shelters stone temples and mischievous monkeys. The “artistic capital” of Ubud is the perfect place to see a cultural dance performance, take a batik or silver-smithing workshop, or invigorate your mind and body in a yoga class.

Seoul is the business and cultural hub of South Korea, where skyscrapers tower over Buddhist temples. Take it all in from the N Seoul Tower, built atop a peak in Namsan Park. The teahouses and shops of Insadong give you a taste of Korean flavor, which you can further experience with a visit to the grounds and museums of Gyeongbokgung. UNESCO World Heritage Site Changdeokgung Palace is a fine example of authentic ancient architecture.

Tradition collides with pop culture in Tokyo, where you can reverently wander ancient temples before rocking out at a karaoke bar. Wake up before the sun to catch the lively fish auction at the Toyosu Market, then refresh with a walk beneath the cherry blossom trees that line the Sumida River. Spend some time in the beautiful East Gardens of the Imperial Palace, then brush up on your Japanese history at the Edo-Tokyo Museum. Don’t forget to eat as much sushi, udon noodles, and wagashi (Japanese sweets) as your belly can handle.

Sydney offers plenty of historical and contemporary Australian flavor. The marvelous Sydney Opera House looks like a great origami sailboat, floating peacefully in a harbor. Wander the narrow cobblestone streets of The Rocks and then take in a street performance on the Circular Quay before heading into the Museum of Contemporary Art. The views from the Sydney Tower Eye observatory are epic – use this chance to get to know the layout of the city from high above.

Over the centuries, many cultures have added their mark to this prized piece of land. Today, you can experience those influences firsthand by exploring Istanbul’s mahalles (neighborhoods). From the holy sites of Sultanahmet and the 19th-century European elegance of Beyoğlu to the high fashion of Nişantaşı, the vibrant café society of Kadıköy and the football-loving streets of Beşiktaş, it’s easy to see why travelers say that Istanbul isn’t just one city, but many cities within one.