The Chicago Merchandise Mart is a large commercial building located in downtown Chicago, Illinois. It serves as a hub for wholesale trade, showcasing a wide variety of products, including furniture, home decor, and fashion. The Mart is one of the largest commercial buildings in the world, covering over 4 million square feet. Opened in 1930, the Merchandise Mart is home to numerous showrooms and offices, attracting buyers and designers from across the country. It also hosts various trade shows and events throughout the year, making it a key destination for those in the retail and design industries.