I've been to both of them
and the Science one, on the last days I had to kill time in London.

I may just wander around.
( Woking Girl, Fri 12 Jan 2007, 13:19, archived)

Soames museum, National Portrait Gallery,
Hayward gallery, national film theatre, Tate Britain, there's Quite A Lot To Do.
( Flapjack I spay a little mare for you, Fri 12 Jan 2007, 13:25, archived)

Indeed this
As the old misquote goes "When a person is tired of London, they're tired of life," so if you can't find anything to do why not just jump off Tower Bridge?
( Lord Gnome, Fri 12 Jan 2007, 13:28, archived)