Menocchio
Prince
This might be a controversial opinion, but I dearly hope that Big Ben is not Great Britain's designated wonder. If there was a particularly British "world wonder" of the 19th century, it was the Crystal Palace, which I hope gets in instead. It's mostly forgotten about today, but in its time it was a really remarkable structure: it had numerous immediate imitators (to say nothing of today's predilection for glass-and-steel structures), and represented to people who saw it or heard about it a kind of utopian vision of the future that rationalism and progress would bring about. It's a great symbol of the modern era.
