On the last leg of my trip to Europe to check out Web 2.0 companies, BoomTown spent the day at the Royal Society in the tony environs of St. James’s Park and Pall Mall, for some more lively discussions with more students, academics and entrepreneurs in England.

The Royal Society, by the way, is an “independent scientific academy of the UK and the Commonwealth dedicated to promoting excellence in science.”

In other words: Geek Central of London for more centuries of nerdiness than you can shake a powdered wig at (and, let me just say, there were a lot of powdered wig-wearing techies back when).

As I have written, it’s been a really interesting visit here overall, first at Cambridge University and now here, where a group of entrepreneurs, academics, execs and venture capitalists from Silicon Valley have been mingling with British students, academics and tech entrepreneurs.

It’s all been organized by Ellen Levy of Silicon Valley Connect and U.K.-based tech entrepreneur Sherry Coutu, in partnership with the National Endowment for Science, Technology and the Arts.

So here’s my final video of the events, including interviews with European VC Saul Klein of Index Ventures, as well as Silicon Valley visitors Hans Peter Brondmo of the start-up Plum and Emily Melton, a VC with Draper Fisher Jurvetson.

The conclusion: It’s a small world, after all, as you will see. Also a message from the Queen: