Torii gates are traditional Japanese structures that mark the entrance to sacred spaces, such as Shinto shrines. They are typically made of wood or stone and consist of two vertical posts supporting two horizontal beams. The design symbolizes the transition from the mundane to the sacred. These gates come in various styles and colors, with the most common being a bright orange or red, which is believed to ward off evil spirits. Torii gates can be found throughout Japan, often in picturesque settings, and are an important part of Japanese culture and spirituality.