Just surfing through wikipedia, I ended up looking at the entry for a place called Lamma Island, in Hong Kong, and was surprised to find that "A stone circle was discovered in the northern part of this island."
http://en.wikipedia.org/wiki/Lamma_Island
I thought such things were a European and Middle Eastern phenomenon, but looking further, I found that "Stone Circles are expected to be found in Hong Kong as Hong Kong is rich in Neolithic and Bronze Age artefacts"
http://www.nationmaster.com/encyclopedia/Stone-Circles-(Hong-Kong) - there is a bug on head heritage that prevents this link from working. to correct it, you need to manually type a close bracket symbol, ")" at the end of the URL.
More information can be found here: