Art books are great places for images. Do a "subject" search in the CityU LibraryFind to find picture books. Use Advanced Search in CityU LibraryFind, and search by Subject, then enter "pictorial works" in the subject heading. You should get "pictorial works" from many different subject areas!
Artstor is a digital library of nearly one million images in the areas of art, architecture, the humanities, and social sciences with a set of tools to view, present, and manage images for research and pedagogical purposes. Artstor collections comprise contributions from museums, individual photographers, scholars, special collections at libraries, and photo archives.
The Image Collection consists of a wide array of photos and maps, with an emphasis on world news and events. Other areas of coverage include contemporary and historical photos of people, places and the natural kingdom.
A major academic quarterly dealing with Macao history and culture, RC aims to foster the exchange of ideas relating to Chinese and Western cultures, to reflect the unique identity of Macao and to stimulate ideas and discussions of topics related to Macao culture and history, establishing an intellectual forum for "Macao Studies".