Judging by the construction style, we can identify 2 large categories of torii and the most frequently used is the one in this photo, the myōjin style.
Besides the two pillars (called hashira), the myōjin style features a large horizontal beam made from two parts, called kasagi - the black part and shimaki - the vermilion part, reinforced by a smaller beam (the nuki). An important detail is that the myōjin torii has the kasagi and shimaki slightly curved upwards...
EXIF info:
Nikon D90
Lens: VR 18-55mm F/3.5-5.6G
Focal Length: 18mm
Aperture: F/5.6
Shutter Speed: 1/200s
ISO Sensitivity: ISO 400