What else to do in Central London

A friend and I were going to go to Greenwich today and explore for a bit, but the friend now has less time. We still want to go out and see something different, but will probably have to stay in zone 1.

If the majority of people in London have heard of it, we’ve probably done/seen it or don’t want to.

So what else is there to do/see in central London in 2 hours or less that’s fun but not generally known about?

Oops, this is probbly to late to be of any use, but you might like to know that you can find fair few London people (Dopers and non-Dopers) at http://nadsters.com/nads/ Perhaps it will come in useful next time. :slight_smile:

Feed the birds, tuppence a bag…