Tōshō-gū Shrine was the shrine of the Tokugawa clan during their mainly insular period of ruling Japan from 1603 to 1868. It is also a major tourist attraction located in the forested hills next to Nikkō.
The admission price for adults (defined as high school age upwards) is ¥1,300. Elementary and middle school aged children are admitted for ¥450.
The rather steep entry price still doesn’t give you access to everything in the shrine complex. To enter the treasure room, you’ll have to lay down another ¥1,000 for grown-ups and ¥400 for kids. If you’re planning to visit both, you can get a combined “set ticket” for ¥2,100 – a saving of ¥200 over buying them separately.