Kyoto Imperial Palace significant event Ceremonies of the Accession to the Throne
Shunkōden
The Shunkōden (春興殿) was constructed to house the sacred mirror on the occasion of the enthronement ceremony of Emperor Taisho in 1915. The roof is modern in that it is made out of copper and not wooden shingles.Shishinden
The Shishinden (紫宸殿) is the most important ceremonial building within the palace grounds. The enthronement ceremonies of Emperor Taisho and Emperor Showa took place here. The hall is 33 by 23 metres (108 by 75 ft) in size, and features a traditional architectural style, with a gabled and hipped roof.  On either side of its main stairway were planted trees which would become very famous and sacred, a cherry (sakura) on the eastern, left side, and a tachibana orange tree on the right to the west. The garden of white gravel played an important role in the ceremony.
The center of the Shishin-den is surrounded by a hisashi (庇), a long, thin hallway which surrounded the main wing of an aristocrat's home, in traditional Heian architecture. Within this is a wide open space, crossed by boarded-over sections, leading to the central throne room.