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.

I vaguely thought about leaving London recently and the British Library came to mind as somewhere I’d miss. It’s an essential resource because it has almost everything. It also has some interesting exhibitions.

Incredible building centred in the heart of London. Great for exhibitions, David Hockney is currently showing here.

Biblioteka is a library that collects and makes publicly available artists' books, photography books, zines, ephemera and publications on architecture and design. They operate as an experimental library space exploring what a library could be. After running 3 spaces in Kyiv, Ukraine their collection is now based in London, UK.

Eccentric and surprising house and museum of architect Sir John Soane. Mostly unchanged since his death over 180 years ago, it is full of atmosphere. Also have spotlit, late night openings.