The ianVisits guide to December's unusual events, tours, lectures and exhibitions happening around London.
Saturday 5th December
Monthly open day at one of London's more curious and delightful museums, devoted to the history of the sewing machine.
2pm to 5pm
Sunday 6th December
Monthly open day at the museum to London's first international airport - in Croydon.
A monthly opening of the Victorian museum of industrial testing equipment.
11am to 5pm
Sunday 27th December
A monthly open day at a quirky transport museum housed in an old water pumping building.
10am to 4pm
Discover the history of the building and climb the 135 stairs for the best view of Hackney.
2pm to 4:30pm