Think about your home town or city or even your local mall. You have the main street with the high rents and this is where you find the well known shops you find in every town, city and mall. If it is your mall you have the giant anchor department stores and your Gap, Abercrombie & Fitch, Apple Store, Banana Republic and Barnes &Noble and so on. In your town you have the stores that were popular enough to not be driven out of business by the giant box stores like Walmart and Home Depot. This is what Ermou Street is to Athens, a large shopping avenue with the best known stores.