Introduction to the Big Spider Sculpture: In the square in front of the National Gallery of Canada, there is a large black spider sculpture cast in bronze. The giant spider is the work of American female sculptor Louise Bourgeois. It is 30 meters high, 33 meters wide, and has a total weight of 6,000 kilograms. This large spider sculpture is called "Maman", which represents the power of mother and is a metaphor for hard work, nurturing and protection.