Most shrines in Japan have a vermilion gate called Torii, which has become a symbol of the shrine.
In recent years, Fushimi Inari Taisha (Fushimi Inari Shrine) in Kyoto, known for its thousand torii gates, has become particularly famous, attracting many visitors from Japan and abroad.
Torii gate at Fushimi Inari Taisha
Torii are considered to be a boundary between the mundane world in which we live and the sanctuary which the gods reside.
The reason why the color of torii is generally vermilion is because vermilion is believed to ward off evil spirits in Japan.
Manners of worship
It is considered polite to bow before passing through a torii gate, as you are entering a sanctuary.
Also, since the middle of the torii gate and the approach to the shrine is considered to be the path of the gods, it is better to proceed from either the left or right side.