- Year opened: 1962 (as The Queen's Gallery, re-opened in 2002 after expansion, renamed The King's Gallery in 2024)
- Must-see highlights: Artworks from the Royal Collection, one of the world's largest. See paintings by Old Masters, decorative arts, and historical artifacts.
- Current use: Public art gallery showcasing rotating exhibitions from the Royal Collection.
- Unique fact: Built on the site of Queen Victoria's private chapel, which was destroyed by an air raid in 1940.