With a serious dose of caveat emptor, there may be a fly past by the Red Arrows over central London on Saturday.
A look ahead at some picks of what's free to do in London this week.
A room filled with dense fog, coloured fog, still fog, murmurs in the fog, faces fading into view through the fog. This is the Wellcome Collection's latest art display.
Not literally, as they are all dead now, and that would be rather macabre, but there is an exhibition about what the scientists did when alive.
The London Transport Museum has laid on a second Gin Tasting evening on 30 October.
Time to start planning the annual celebration of the persecution of a Papist plot to kill our Protestant Monarch.
Later this month, there will be an exceptionally rare chance to walk through the mothballed Post Office Railway tunnels.
A sex shop is to open in Soho next month, as an art show, with everything made from felt.
For just four nights, 20 illuminated works of art will be scattered around London for its first major festival of light.
The Worshipful Company of Woolmen will be organising a Sheep Drive across London Bridge this year.
If you are in the area on Monday (14th Sept), then there will be a chance to see a fairly rare ceremony take place at the Tower of London.
Later this month, there will be a tube station made from wood, and a restaurant named after Frank Pick, founder of TfL's design ethos.
Something for anyone excited by British engineering -- as the Bloodhound Supersonic Car will be going on public display in London later this month, for just two days.
On Saturday 5 September, Camberwell Bus Garage will open its doors to members of the public in the next of a series of bus garage open days.
Each year, in a ceremony as rich in pomp as it is ancient in history, and in total silence, the new Lord Mayor is sworn into office.
Sign up for my Weekly Guide to offbeat events in London