The International Exposition Center, also known as the I-X Center, is a convention and exhibition hall located in Cleveland, Ohio, adjacent to Cleveland Hopkins International Airport. The 2,200,000-square-foot (200,000 m²) building includes over 1,000,000 square feet (93,000 m²) total square feet of exhibition and conference space, making it one of the largest meeting, convention, and exhibition centers in the United States.