The Nikkou Toushou Shrine is a Shinto shrine dedicated to , built in 1617 and located in . It is the most well-known and head of all s. This is where Ieyasu's remains are entombed and where he is enshrined as a deity, the Great Toushou Avatar, guardian of Japan. It is one of the "Shrines and Temples of Nikkou", a UNESCO World Heritage Site.
The shrine complex contains numerous National Treasures and Important Cultural Properties. Famous structures include:
- Youmei ("Sun-Bright") Gate (陽明門), lavishly covered with brightly-colored carvings
- Sacred Stables
- The Five-Story Pagoda, rebuilt in 1818 after being destroyed by fire
- Hundreds of stone steps leading through Japanese cedar to a gate and the copper Treasure Pagoda containing Ieyasu's remains
- Kara Gate leading into the inner sanctuary
- The Sakashita Gate (坂下門), entrance to the inner shrine, also called the Forbidden Gate because it was barred to all but the during the . It was built in 1636 and remains virtually unaltered from that time.
- The Inuki Gate (鋳抜門), entrance to the stone fence-enclosed space which holds the Treasure Pagoda with Ieyasu's remains inside. Originally stone and rebuilt in the time of the 5th Tokugawa , Tokugawa Tsunayoshi.
- The Treasure Pagoda (宝塔) which holds Ieyasu's remains. Originally constructed of stone, it was destroyed by earthquakes in the time of the 5th Tokugawa , Tokugawa Tsunayoshi and rebuilt in copper.
The shrine is richly decorated with carvings and sculpture, including:
- The "three wise monkeys" (Sacred Stables) who hear no evil, see no evil, and speak no evil
- The "sleeping cat" (carved above the Kuguri Gate)
- The twelve zodiac animals (Five-Story Pagoda)
- 78 tapir, an imaginary creature with a long elephant-like nose and curled hairs on its neck
- Winged dragon (Holy Water Basin)
- 129 lions, with a pair guarding the Stone Fence
- Sparrows
- Soku-iki, a scaleless creature with curled hair on their necks and the nose of a pig (Yomei Gate)