the museum houses a collection of over 300 preserved medical specimens, ancient tools and manuscripts
(o) https://www.rcseng.ac.uk/museums-and-archives/hunterian-muse...
There's been a recent crowdfunding effort to make CAD models of Soane's Bank of England: http://www.projectsoane.com/
See also the drawings of Eujin Lim, an architecture student: comics of the Soane museum. Something about the way space is divided in the house lends itself to the panel format:
http://cargocollective.com/eujinlim/drawing-soane-s
Dulwich Picture Gallery, while a bit inconvenient to get to from central London, is another Soane attraction:
http://www.dulwichpicturegallery.org.uk/about/our-architectu...
Soane is part of a vigorously individualistic tradition in London's architecture culture that is still pretty strong. Zaha Hadid, Peter Cook, Peter Salter, Libeskind, Koolhaas. It's THE rabbit hole to fall down if you like buildings, drawing, complexity, spatial experience.
1: http://www.ucl.ac.uk/museums/petrie/ 2: http://www.ucl.ac.uk/museums/jeremy-bentham
Edit: the link for candlelight viewings isn't obvious on their website, here it is: http://www.soane.org/your-visit/evening-openings