The International Exposition Center, better known as the I-X Center, is a convention and exhibition hall located in the Hopkins neighborhood of Cleveland, Ohio, United States, adjacent to Cleveland Hopkins International Airport. The 2,200,000-square-foot building includes over 1,000,000 square feet total square feet of exhibition and conference …The International Exposition Center, better known as the I-X Center, is a convention and exhibition hall located in the Hopkins neighborhood of Cleveland, Ohio, United States, adjacent to Cleveland Hopkins International Airport. The 2,200,000-square-foot building includes over 1,000,000 square feet total square feet of exhibition and conference space, making it one of the largest meeting, convention, and exhibition centers in the United States. The diverse show schedule includes public events featuring one of the country's largest boat shows, trade shows, banquets and meetings attracting over 2 million visitors each year.