Alternative societies and cultures are fascinating to me simply because it is something completely different from what I already know and understand. My particular interest in the Chinese culture has proven to surprise me over and over again when I least expect it.
I am writing a paper on the Opium Wars between the Chinese and the British in the mid-1800s and how these wars and events caused the ultimate downfall of the Chinese dynasties in the early to mid-1900s. I expected the reasons behind the Chinese loss of these wars and the downfall would be the Chinese inferior military or political problems that caused the weakening of the government and then the inherent problems that follow. But...NO!
The Chinese society called all outsiders barbarians prior to this run-in with the British and they were basically ignorant to the outside world, especially the Western world. They lost the war and allowed so many foreign changes into the country afterwards because they thought they could let invaders in and they would take to the mission of the culture, the Confucian order and the great civilization...but they were wrong!

The foreigners that came into China only cared about wealth and power and those goals were in complete opposition of the Confucian society that was set up...THIS was the downfall of the Chinese dynasties. Once they let foreign influences into their country there was no going back because the government and sovereigns had no control over their people anymore.
Maybe this isn't interesting to you...but I think it is very interesting considering what an international world we live in these days! I'm not saying that it was a bad thing that China let those influences in because they had a lot of internal problem and external problems without the help of foreigners...but think of our country today. We have almost unlimited access to any culture and society on earth to learn and study about what they do and why. So has that brought us as Christians down and weakened our argument or has it allowed for implementations and strengthening of our faith?
I think the fact that we have access to so many other cultures has allowed us as Christians to be much more effective in what we believe and why when we can hear and understand the other side of the story. We can't live our lives in ignorant bliss thinking that there is only one way to do things and we are always right.
Someone came to GCC and spoke about being in the world and not of it as Christians and then my goof friend wrote a blog about how wonderful this idea is and how frustrated she is that Christians create their own world so they don't have to exist in the real world. I think this can be a real danger. You can read it yourself if you're interested at http://thedoctorsnotes.blogspot.com/.
Learn history to learn from it...I always hated history and finally it is making sense... about 16 years too late.