From Incheon, visit Seoul, where modern life meets tradition. See Cheong Wa Dae (Blue House), the president's official residence; browse Insadong's antique shops, galleries, and craft stores; learn Korean history at the National Museum; and admire Changdeokgung, a UNESCO-listed palace. In Incheon, visit the memorial to General Douglas MacArthur's September 1950 landing operation, a key Korean War victory.

Jeju Island is often called the "Island of the Gods," for its breathtaking landscape. UNESCO deemed the island's dormant volcano Hallasan as a Biosphere Reserve because of the abundance and diversity of plant and animal species. Enjoy delicious fare, such as fresh fish, squid, octopus and sea cucumber, as well as its famous Shitake mushrooms and honey, which has a distinct taste.

Yeosu spans 365 islands, 49 inhabited, on South Korea's East China Sea coast. Once a key Joseon navy headquarters, it was transformed by hosting the 2012 World Expo and now blends green hills, shining sea, and bold architecture. It's also a food lover's destination, known for egg cockles, gulgui (grilled oyster), and spicy kimchi made with local mustard leaves.

Nagasaki, Japan's early gateway to the West, offers European-style homes, a busy harbor, fusion cuisine, and Castella sponge cake from Portuguese missionaries. It is also marked by the second atomic bomb, so a visit to Peace Park is a deeply moving must. Take in views from Mount Inasayama, drive through the countryside to Arita, birthplace of Japanese porcelain, and return to Nagasaki's oldest Chinatown for Chinese food adapted to Japanese tastes.

Kagoshima is Japan's southernmost major city, and is nicknamed the "Naples of the Eastern World," based on its caldera bay location, hot climate, and volcano. The majestic view of Mt Sakurajima, one of the world's most active volcanoes, dominates the city's landscape, towering over the beautiful Kinko Bay. The city abounds in historic sightseeing spots such as the memorial site of St. Francisco Xavier, who landed in Kagoshima and first introduced Christianity to Japan.

Lovers of hot spring resorts, rejoice. Perched hillside on the southern Japanese island of Kyushu, Beppu bubbles with life thanks to a preponderance of onsen (hot springs). Enjoy a variety of rejuvenating bath types, from heated sand to traditional steam to hot mud. As one of the country's most popular spots for enjoying a long, hot soak, most visitors find Beppu to be a delightful opportunity to absorb the more relaxed side of Japan's vibrant culture.

Hiroshima, surrounded by forests and hot springs, is a symbol of rebirth and resilience. Key sites recall the first atomic bomb attack of Aug. 6, 1945: Peace Memorial Park, the Atomic Bomb Dome (a UNESCO World Heritage site since 1996), and the Children's Peace Monument. Take a ferry to Itsukushima, a sacred Shinto island with the iconic "floating" torii gate. End with Hiroshima-style okonomiyaki.

Kochi is rich in natural beauty: a Kuroshio-warmed coastline, the clear Shimanto River, and deep green forests. In southern Shikoku, it is bordered by mountains to the north and traces Tosa Bay with an arc-like coast, from Cape Muroto in the east to Cape Ashizuri in the west, with sandy beaches between. It also features the mystical Ryuga-do limestone caves and the scenic pine-lined Katsurahama Beach.

Osaka offers superb cuisine, shopping, and a friendly spirit, with restored Osaka Castle as a standout link to Japanese history. Known as Tenka no Daidokoro ("The Nation's Kitchen"), it was once Japan's rice-trade hub and is now a gourmand's paradise. Enjoy views from Abeno Harukas, Japan's tallest skyscraper, then visit the aquarium and Dotonbori. Nearby Kyoto invites you with remarkable architecture, including thousands of Buddhist temples and Shinto shrines.

Once a modest fishing village, modern Tokyo is a vast metropolis of distinct neighborhoods: Shinjuku's Golden Gai bars, Nihombashi's culinary and shopping scenes, Akihabara's gadgets and manga culture, and Asakusa's pottery shops. Explore museums covering Japanese history and culture, especially the Tokyo National Museum. Visit the Imperial Palace and Senso-ji in Asakusa, enjoy Tokyo's exceptional food scene, and take a selfie at Shibuya Crossing.