• Senate House(Sat, 10am-5pm)(wander around Holden's university masterpiece)
• Wilton's Music Hall(Sat, 10am-1pm)(the oldest grand music hall in the world)
• Trinity Hospital(Sat, 10am-4pm)(annual 17C open day on the Greenwich waterfront)
• Royal Courts of Justice(Sat, 10am-4pm)(there's so much to see at Legal Central)
• City Hall(Sat 10am-6pm) (the only day of the year the Mayor lets you see round London HQ)
• Crossrail - Farringdon(Sat, 10am-4pm)(come view the worksite -and no need to book)
• Portcullis House(Sat, 10am-5pm)(see Parliament's new-ish offices and committee rooms)
• The Clockworks(Sat, 10am-5pm)(world class private museum of timekeeping in West Norwood)
• William Booth College(Sat, 9am-5pm)(the Sally Army in Denmark Hill, with great views from the tower)
• Modernism in Metroland(Sat, 10am & 2pm)(guided tours round Stanmore to see suburban art deco treasures)