Brussels International Trade Mart Brussels, Belgium Total s.f./sm: 1.78 million s.f. (165,000 sm) Developed to capitalize on the overwhelming success of AMERICASMART® -ATLANTA, the Brussels International Trade Mart represents Portman’s entry into the European real estate market. The Trade Mart is comprised of 1,500 showrooms. Area amenities include food and beverage facilities, banking services, a post office, and ample parking.