I wrote about East Gardens in The Imperial Palace for a while ago, but there is another area which you can’t enter without joining the guided tour.
So, I will show you the guide tour in The Imperial Palace.
The guided tours are given twice in a day at 10:00 AM and 13:30 PM, except Sundays, Mondays and National Holidays. (No tours are given at 13:30 PM from 21st July to 31st August.)
Registration starts 30 minutes before the tour start.
Maximum number of places for same-day registration are about 300 per tour.
From The Imperial Household Agency website
You can register in front of the Kikyo-mon gate.
Passport is required to register, so you should bring it.
If you walk through Kikyo-mon gate, you will see Fujimi-yagura.
This is one of the remains of Edo castle, was built on 1659. This is substituted for the main tower after The Main Tower was destroyed by fire.
You could overlook Tokyo Bay and Mt. Fuji from this building at that time.
If you go further, you will see The Imperial Household Agency Building.
This building is built on 1935. 3rd floor was used as the temporary palace between 1952 to 1969.
This is The Imperial Palace. Greetings for the Emperor’s birthday and new year, the state dinner with state gusts and ceremony of appointment of Prime Minister are held here.
The schedule might be changed by the event sometimes, so please check the Imperial Household Agency website in advance.