Shiba Toshogu Shrine is located inside Japan's oldest public park, its entrance marked by a beautiful, centuries-old gingko tree. There are several so-called Toshogu shrines in Japan dedicated to the first of the Tokugawa shoguns, Ieyasu, and this shrine is no exception. But what makes this particular Toshogu shrine special, is the seated wooden figure of Ieyasu that he himself commissioned—today a designated cultural property.
If you have time, continue to explore Shiba Park, and drop into neighboring Zojoji Temple, where you can spot the tombs of six of the Tokugawa shoguns. You can get an unobstructed view of Tokyo Tower from the temple grounds too.