Though I'm not particularly knowledgeable about either field, I've always loved both art and architecture. Some of my favorite exhibitions are those that bring the two fields together, such as functional buildings that stand as works of art in their own right.
Thus, I love the new Bloomberg Pavilion erected in front of the Museum of Contemporary Art in Tokyo. While serving as a structure, it is also an incredibly, visually stimulating piece of art.
Image courtesy of http://www.domusweb.it/en/architecture/bloomberg-pavilion-project