If you stay more than 3 days in Tokyo, take the time for a day's excursion to Kamakura. It’s hard to imagine that this quiet little town used to be the capital of Japan (between 1185 and 1333).
The essential thing to see there Kōtoku-inqui temple,which houses the famous Daibutsu, a bronze statue almost 13 metres high, representing Buddha sitting in the lotus position, the position of meditation. It is only the second largest statue of the country, the first being in Nara, but the setting makes it the most aesthetic in my opinion.
Go for a walk through the city and don't miss the Museum of National Treasures of Kamakura, which houses more than 2000 treasures from various temples.
The charm of Kamakura will help you forget the frenzy of Tokyo for the space of a day.