>I am traveling to Japan tomorrow for about 2 weeks. It is for work but I am hoping to have some free time while I am there. I will be in Tokyo for about 6 days including the weekend. Is there something I just must see while in Japan?
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I don't have any recommendations but am extremely envious. Have a blast!

One thing I suspect may be the case based on my own experience with Japanese businessmen (a group of them visited my company in Dallas) is they will probably want you to work all the time. Make time to see the sights even if you lose some sleep. You may never be there again.