The main library in Hong Kong is in Causeway Bay along side Victoria Park. The exterior of the library is one of my least favorite facades anywhere. It looks like the architect flipped through a Dover book of Romanesque elements, picked out a few, then threw them in a hat picking out at random which ones to use. Over all the facade looks as Romanesque as the yellow spray stucco covering the walls. The inside has nothing to do with the exterior and I enjoy being in there quite a bit. The reading area on the 6 floor has a spectacular view of the park and Kowloon.
The selection of English fiction and nonfiction is very good considering this is China. You can request books online and have them sent to your local library (one in every district) and you can return books to any branch. There is even a book mobile that comes around bi-weekly. Here is the link to their site: http://www.hkpl.gov.hk/eindex.html