Whenever I visit Hong Kong, I usually make time for a trip to the Flagstaff House Museum of Tea Ware. I have visited often enough when I have the chance; and I always find casual tours through the place to be inspiring in some way.
Currently, they have a new exhibit showcasing the history of tea. The exhibit runs until November 11, 2008. Last time I visited HK back in March, it wasn't installed yet. On my next visit to HK (very soon), I will be sure to take a look.
Check the HK Museum of Art website for details.