The main building was a two-story wooden house with a basement; it had a dome on the western corner of its red straight roof and it is said that, in appearance, it imitated the architecture of the times of India's Emperor Akbar and the Taj Mahal, which is considered a masterpiece of modern construction.
その本館の外見は、インドのアクバル皇帝時代の建物やインド近代建築の傑作といわれたタージマハルを模したとされ、赤いストレート屋根の西隅にはドームがそびえ、木造二階建て、地下一階となっている。