Plano is a city in the state of Texas, located mostly within Collin County. Plano is twenty miles northeast of downtown Dallas. Approximately 80% of Plano's visitors are business travelers, due to its close proximity to Dallas and the many corporations headquartered in Plano. The city also has a convention center that is owned and operated by the city. Plano has made a concerted effort to draw retail to its downtown area and the Shops at Legacy in an effort to boost sales tax returns. The Shops at Legacy area has apartments, shops, and restaurants constructed with the New Urbanism philosophy. An experimental luxury Walmart Supercenter is located at Park Boulevard and the Dallas North Tollway.