I'll be in London this Sunday for five days.

[enlightenment]

3. The British Museum has

several great exhibits on right now, including a new one on the Vikings - https://www.britishmuseum.org/about_us/news_and_press/press_releases/2013/vikings_life_and_legend.aspx

If the weather is nice, go to Regent's Park - the spring flowers should be blooming now and it is a lovely lovely place.

I've never stayed in Maida Vale, but I've heard the Warrington is pretty nice for a meal. What you might like pub-wise depends on what you like . . . I like pleasant afternoons and early evenings without too many people (unless it's watching cup ties and such - then raucous crowds are fun). The Star, in St John's Wood, is nice - and the Washington in Belsize Park (on an afternoon, especially).