Ise Jingu
Affectionately known as O-Ise-san and commonly called Ise Jingu, its official name is simply Jingu. Its 125 shrines include the Inner Shrine (Kotaijingu), dedicated to Amaterasu Omikami, the ancestral deity of the Imperial Family, and the Outer Shrine (Toyo'uke Daijingu), dedicated to the guardian deity of food, clothing, shelter, and industry, as well as auxiliary shrines and other affiliated shrines.
When I visited Ise Jingu, I noticed how sincerely everyone bowed during their prayers. The look of satisfaction and happiness on their faces was really special—different from what I've seen at other shrines.