The Greenwich Observatory with its green laser beam can transfigure any night sky. If you decide to cross the Thames via the foot tunnel, make sure you look out for the green ray. You can be on one side of the meridian in a minute, and cross to the other side on the next, without even realising it.

Great comic shop that stocks small press, and everything else you'd expect to find. The kids section starts at early ages and has something all the way up.

Archive collection of surgical instruments - anatomy and pathology - dental instruments - medicine and surgery (basically a lot of dead things in jars, really interesting to draw from).

Traditional Punjabi restaurant that has been serving aromatic, spicy dishes since 1972. Bring your own alcohol.

A great walk down an old abandoned rail way from Finsbury Park to Highgate. Most of the original platforms are sill remaining so its an interesting place to explore...