London has a lot of great museums (with free admission) to peruse, with one of the most prominent being the Science Museum. When I visited it, there were several great exhibits to check out, including ones on flight, space, and "big data."
The big data one was particularly interesting due to the way in which it was framed. Instead of offering a simple story of "hey, we figured out how to do this stuff, good work, science people," the exhibit consistently presented the topic as a matter of public policy debate. I even received an opportunity to take a quiz to gauge the degree to which I'm comfortable with companies and governments having access to personal data. It turns out that I'm a mushy, middle-of-the-road boring guy that is interested in the potential benefits of collecting this data while still wanting various legal safeguards and privacy protections in place. Sounds about right.
There was also a neat IMAX film playing about robots. Simon Pegg narrated it, and there was a droll sense of humor throughout it that I could appreciate, including a strangely long sequence of robots dancing that was meant to explain how artificial intelligence works. The best part of the film by far, though, was the floating head that preceded the film and provided helpful advice on how to find the exits. I want him to do that before every movie that I watch.