Toshu-gu: Tokogawa Ieyasu's Resting Place
....The top site to see in all of Nikko is the Toshu-gu, the elaborate shrine complex built around the final resting place of Tokogawa Ieyasu, the unifier of Japan in 1600. Ieyasu loved Nikko's peaceful hills and shrines, visiting them when he could during his reign, and specifically asked to be buried here after his death in 1616, requesting a humble shrine. Of course, the ather of the Tokogawa Dynasty couldn't just have a nondescript place, especially since he was considered a Shinto god, so his descendants built an ornate complex of toriis, towers, pagodas, gates and worship halls that has to be seen to be believed. In fact, the torii at the entrance to the complex, built from granite, is the largest constructed during the Edo period and the five story pagoda, built in 1650 but destroyed in 1815, is noted for its earthquake-proof construction whereby its central pillar is suspended by chains at the fourth floor, oscillating to keep the tower's equilibrium during a tremor.
... Of course, if you want to see Ieyasu himself, you have to pass the sleeping cat carving and walk up several hundred steps to a quiet hilltop overlooking most of the shrine's buildings. There, you'll see a simple cylinder, guarded by a crane, where the famous shogun rests.