The Horniman Museum

The aquarium yesterday is part of the Horniman Museum, correctly identified yesterday by one alert visitor.

This place is an absolute gem. Finding places like this, or more precisely the ability to find places like this after all these years, that almost defines London to me. I only happened on it by accident, on my way to Dulwich - I could have found it earlier by paying more attention. I urge you to visit if you haven't done so. If you have, you know what I'm talking about.