Ninnaji Temple
The head temple of the Omuro school of Shingon Buddhism, Ninnaji Temple is listed as a UNESCO World Cultural Heritage site as part of the Historic Monuments of Ancient Kyoto. Construction began in 886 at the request of Emperor Koko, the 58th emperor, during the early Heian period, and the temple was completed in 888 by his successor, Emperor Uda. The era name Ninna derives from the temple's name.
You need a ticket to enter the imperial garden. Every part of the garden has its own unique scenery—definitely worth checking out.