Enshrines: Takeminakata no Kami, Yasakatome no Kami, and Yaekotoshironushi no Kami.
Suwa Shrines are one of the biggest shinto society which has about 25,000 shrines and 100 to 500 thousands believers.
Legend said in Japanese myth, when Takemikazuchi no Mikoto, enshrined at Kashima Shrine, defeated Okuninushi and conquered Izumo, Takeminakata no Mikoto, the son of Okuninushi, never accepted to give their land to Amaterasu Omikami. He challenged Takemikazuchi no Mikoto by Sumo match, but he lost. He have to escape from Izumo and arrived to Suwa. Then, he build new country at Suwa. This is the origin of Suwa Grand Shrine.
However, most likely it Suwa Shrine called "Osuwa-sama" or "Suwa Daimyojin, " and never called its individual name. Also, many of the ritual ceremonies and festivals are based on the local religions.
Like other typical shrines, it takes sacred tree, Goshinboku.
Neiri no Sugi
... is 800 years' old Cedar Tree.
Kaguraden, the platform for Kagura Dance
... was built in 1835 by Tatekawa Tomiaki the second. He designed and built this architecture in front of his father's work. He made this Kaguraden as gorgeous as the main shrine to match up and create the great harmony.
Haiden, Main Shrine
... was built in 1781 by Tatekawa Tomimune. He studied Tatekawa style architecture, and learned carving from Nakazawa Gohei. Because he was great architect and carving designer, he made great carving at the gate of this shrine. It is Sayu-Katahaiden Style. Both sides of the Haiden, the pray-shrine, are used for ritual worshiping with the priest.
... is the largest bronze Komainu Statue which is 1.7m tall.