The IanVisits guide to Aprils unusual events, tours, lectures and exhibitions happening around London.
Saturday 4th Apr
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 5th Apr
A monthly opening of the Victorian museum of industrial testing equipment.
11am to 5pm
Sunday 26th Apr
Discover the history of the building and climb the 135 stairs for the best view of Hackney.
2pm to 4:30pm
A monthly open day at a quirky transport museum housed in an old water pumping building.
10am to 4pm