The Ultimate 3-Week Japan Itinerary: Must-Sees & Hidden Gems

21 nights: Tokyo, Mt. Fuji, Kyoto, Osaka, Nara and Ine. From Shinjuku's bar-hopping scene to Kyoto's tranquil temple lanes, this trip mixes city energy with quiet moments. A highlight is drifting through light and color at teamLab Borderless, followed by a soothing soak at Amanohashidate. We also wander Nara Park and admire the city views from Umeda Sky Building.