The Merchandise Mart is a large commercial building located in Chicago, Illinois. It serves as a hub for wholesale trade and is one of the largest buildings in the world dedicated to the design and furnishings industry. The Mart houses showrooms for various products, including furniture, textiles, and home decor, attracting designers, retailers, and buyers. Opened in 1930, the Merchandise Mart spans over 4 million square feet and features multiple floors of showrooms and exhibition spaces. It also hosts events like NeoCon, a major design conference, showcasing the latest trends in commercial interior design and architecture.