If you are interested in Edo (present -day Tokyo) period (1603-1868, from 1603 when Tokugawa Shogun ruled Japan to 1868 when Tokugawa shogunate was overthrown and the capital and imperial residence were moved from Kyoto to Tokyo and the imperial family took over the Edo Castle site. Japan's modernization and westernization began then.), I recommend you to visit Imperial Palace Plaza and Imperial Palace East Gardens. Edo-Tokyo Museum is also a very good place to learn about Edo and Japanese transformation from Edo period to Meiji period (capital is Tokyo). Your guide will also help you to learn about the imperial family, Japanese modernization history, etc.
Following are the English web sites about the Implerial Palace.
http://www.kunaicho.go.jp/e-about/shisetsu/higashigyoen01.html
http://www.kunaicho.go.jp/e-about/shisetsu/kokyo.html
Edo-Tokyo Museum
https://www.edo-tokyo-museum.or.jp/en/
- 3-minute walk from West Exit of Ryogoku Station, JR Sobu Line
- 1-minute walk from A4 Exit of Ryogoku Station (Edo-Tokyo Hakubutsukan-mae), Toei Subway Oedo Line
The admission fee for the permanent exhibition (as of August1, 2016):
- General = 600Yen
- Over 65 years old = 300Yen
- College Students & Vocational School Students = 480Yen
- High school Students & Junior high school Students (Not from Tokyo) = 300Yen
- Primary School Students & Preschool Children & Junior high school sutudents(from Tokyo) = Free