Head to Westminster Tube Station, featured in Order of the Phoenix

https://johnathanlwxq719.cavandoragh.org/best-time-to-visit-platform-9-3-4-and-the-harry-potter-shop-at-king-s-cross

Head to Westminster Tube Station, featured in Order of the Phoenix, and relive the awkward Arthur Weasley Muggle go back and forth scene.