Pot stores open in Colorado

SEATTLE -- Wednesday marked a historical day for marijuana advocates, as Colorado opened the first legal recreational pot stores in the world.

Under Colorado's new law, anyone older than 21 can buy pot from licensed retailers but purchases can only be made with cash.

According to The Denver Post, lines in front of some stores grew from a dozen people to hundreds. The demand had one shop raising its prices for an eighth of an ounce, from $25 to $45. Other retailers pledged to not change their prices.

Despite the crowds, however, police did not report any problems on the first day of sales.