The Art Institute of Chicago Building (1893 structure built as the World's Congress Auxiliary Building) houses the Art Institute of Chicago, and is part of the Chicago Landmark Historic Michigan Boulevard District in the Loop community area of Chicago, Illinois. The building is located in Grant Park on the east side of Michigan Avenue, and marks the third address for the Art Institute. The main building was built for the joint purpose of providing an additional facility for the 1893 World's Columbian Exposition, and subsequently the Art Institute. The core of the current complex, located opposite Adams Street, officially opened to the public on December 8, 1893, and was renamed the Allerton Building in 1968.