St. Mary's Cathedral is in Bunkyo Ward, Tokyo and is in walking distance from the subway Gokokuji Station. The neighborhood is surrounded by a number of schools and universities. It is also close to the Higo-Hosokawa Garden that used to belong to a feudal lord family.
The cathedral was designed by the late architect Kenzo Tange and was built in 1964. It does not look like any other church. No cross is attached but the building itself is cross-shaped. You will see it once inside.
The interior of the cathedral is simple, dark and solemn, looking even like a secret fort. When you look up, you will see a cross-shaped top light and realize that you are in a church. Photography is not allowed inside, so please visit the cathedral yourself and see the futuristic architecture.