If you want to travel to somewhere that is really different, then China is a great place to visit!
However, it is always a good idea to learn as much as you can before you go, so that you can enjoy it more and have less potential difficulties.
Here are articles which I have written for the website: China Educational Tours, which takes a special interest in tours to China for school groups, but also welcomes individuals and other private groups. This tour company has a strong interest in letting people see the real living, breathing China, and not just souvenir shops.
And … there are lots and lots of other interesting articles on the website, not written by me (but a lot of them were edited by me).