emporium

Short definition from Wiktionary

Noun

1. 1
   A city or region which is a major trading centre; also, a place within a city for commerce and trading; a marketplace.
2. 2
   A shop that offers a wide variety of goods for sale; a department store; (with a descriptive word) a shop specializing in particular goods.
3. 3
   A business set up to enable foreign traders to engage in commerce in a country; a factory (now the more common term).
4. 4
   The brain.

Proper noun

1. 1
   A borough, the county seat of Cameron County, Pennsylvania, United States.