Let me show you a part of the Imperial Palace whose formal door is opened to the public only twice a year; January 2nd and the Emperor’s birthday. The Imperial Palace was built in the site of formar Edo Castle. The English guided tour is available. 
Fujimi yagura was used as a castle tower of Edo Castle after Meireki fire in 1657.
Fushimi yagura from the iron bridge.
Stone bridge often called Megane-bashi bridge or an eye glasses bridge.
The building of the Imperial Household Agency.
This is a simboric light standing in the approach to Chowaden Hall. 