The Crescent VI business center is located in the Denver Tech Center, and is on the sixth floor of a landmark building that features a clock tower. Denver's booming oil industry of the '80s has declined but energy and mining it still important. Several large companies are based in the Tech Center and elsewhere in the city because metals such as gold, silver and molybdenum are extracted in Colorado. Denver is the largest city for 500 miles, so numerous sectors have regional bases at the Tech Center and nearby downtown area, especially in telecommunications and other hi-tech fields. Denver has enjoyed success as a pioneer in the restaurant industry, with national chains founded and based here, and a number of local and national breweries can be found in the city. Serviced Crescent VI business center has easy access to Interstates 25 and 225. Hotels and restaurants are close by.