marshall zeller is following this and what could it mean for the iconic building?>>reporter: it is a special property that if anything were to change about the castle beside that would trigger an automatic review by the city. a source close to the sports authority financial situation confirms that 140 stores are closing nationwide, 3 out of every 1st and 10 -- 10. denver 7 found out it's not a landmark building despite its history. >>> people are surprised to find out that there's a lot of classical things in denver that are not landmark. >>reporter: anyone can request it become a landmark in three people have to pony up $875. >>reporter: despite the threat of a gretzky a look at he website shows 2500 job openings distribution sites and 25 corporate jobs. as denver seven first told you believe the sports authority name on mile high maybe worth the money for the company. paid $60 million in 2011 for the name, date of 19 million more through the year 2020. >>reporter: i also checkee the market value of the sports castle and parking structure sale happens. they listed