Early this month, I climbed Mt. Fuji in Gokoku-ji Temple in Tokyo. This temple was built following the request of Keisho-in, the mother of Shogun Tokugawa Tsunayoshi in 1681. It was one of the most popular temples in Tokyo together with Senso-ji Temple in Asakusa and Eko-in Temple in Ryogoku. Today, there are many architecture which lasted centuries.
if you have a close look at the above guidebook of Edo Era, there is Nio-mon Gate in the second picture from the left which still remains to this day.
Another gate in the right bottom is So-mon Gate.
The paths from these gates will lead you to the main hall.
There are several more interesting monuments in Gokoku-ji so I will take you there next time.