Use WorldCat to look for books and other media in libraries around the world.
Each subject heading determined by the Library of Congress is assigned a call number. Once you know the subject you are looking for, you may browse the stacks with the corresponding call number and know that you are viewing all materials owned by the library related to that subject.
Common call numbers for ART HISTORY are:
Visual arts: N
Drawing, design, illustration: NC
Print media: NE
Decorative arts: NK
Arts in general: NX