Hachiman-zukuri

The hachiman-zukuri (八幡造^?) is a traditional Japanese architectural style used at Hachiman shrines in which two parallel structures with gabled roofs are interconnected on the non-gabled side, forming one building which, when seen from the side, gives the impression of two. The front structure is called gaiden (外殿, outer sanctuary^?), the rear one naiden (内殿, inner sanctuary^?), and together they form the honden. The honden itself is completely surrounded by a cloister-like covered corridor called kairō' (回廊^?) (see photo). Access is made possible by a gate called rōmon (楼門^?).

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Wikipedia