Commercial Buildings Around The World

Word usage
Commerce primarily expresses the fairly abstract notions of buying and selling, whereas trade may refer to the exchange of a specific class of goods ("the sugar trade", for example), or to a specific act of exchange (as in "a trade on the stock-exchange").
Business can refer to an organization set up for the purpose of engaging in manufacturing or exchange, as well as serving as a loose synonym of the abstract collective "commerce and industry".