2 afternoons in London

[Hobojim]

Hello Southern PH'ers,

I'm venturing into the capital for the next few days and I have 2 afternoons free. Today (weds) and tomorrow (thurs 4th). I'm staying in Euston. What should I go see/do. Usual PH preference towards anything mechanical. Anything car related to go see? Otherwise aeroplanes are always good!

Thanks everyone, Jim.

[Hobojim]

Being a Yorkshireman free entry is appealing!