The headquarters of TV Asahi, one of Japan's biggest television networks, is in the heart of Roppongi. Located next to Mohri Garden, this iconic eight-story architectural wonder of an office building is full of character -- literally. The network boasts some of Japan's most popular characters including Doraemon and Crayon Shin-chan. It also produces some of the country's most anticipated J-dramas. Fans from around the world should pop into the first-floor souvenir shop to find exclusive goods featuring their favorite characters. Also take a wander around to see if you can find any posters of the big names -- the majority of them are displayed on the outside of the building. Pro tip: Stand on the higher ground level of Roppongi Hills, near the Maman Spider Sculpture, to capture the TV Asashi Building in all its glory. From this spot, you can frame the building with Mohri Garden's greenery and the city skyline. How to get to there It's a 6-minute walk from Exit 1C of Roppongi Station to the TV Asahi building.