For many wealthy Chinese, the ultimate travel souvenir is a vacation home, especially a vacation home in Hong Kong.

According to one of Hong Kong's largest real estate companies, Centaline, Chinese buyers represented 18 percent of all real estate purchases in Hong Kong in 2009. Other estimates say the Chinese are responsible for 40 percent of all Hong Kong purchases of property over $1.13 million.

Benedict Ma, associate director of research at CB Richard Ellis, says buying Hong Kong property is a status symbol. You buy an apartment, go back, and tell your friends all about it. If you can afford a place in Hong Kong, you are saying you have arrived.

Ma says many Chinese are also interested in buying U.S. properties, but strict visa policies restrict Chinese visitors to the U.S.