While "number one" is subjective, Tokyo remains the undisputed top destination for the majority of travelers to Japan in 2026. As the world's largest metropolis, it offers a dizzying blend of futuristic technology (Shibuya and Akihabara) and deep-rooted tradition (Asakusa and Meiji Shrine). However, for a single "iconic" landmark, Mount Fuji is often cited as the symbol of Japan. For cultural enthusiasts, Kyoto is frequently ranked as the top "must-visit" city due to its thousands of temples, traditional geisha districts, and well-preserved history. In 2026, many travelers are also flocking to Osaka for its world-class food scene and Universal Studios Japan. If you are looking for the "number one" most photographed spot, the Fushimi Inari Shrine in Kyoto, with its thousands of red torii gates, consistently holds that title on social media.