Las Vegas, USA - September 4, 2014: Aerial view of Las Vegas Strip resorts and casinos at night. Large dancing fountain of Bellagio is a major attraction on the Las Vegas Strip.

Nevada has become the fifth state in the US with stores selling marijuana for recreational purposes.
People aged 21 and above can now buy up to an ounce of the drug at a time and use it in their homes if they have a valid ID in the western state, which is famed for the hotels and casinos in its largest city Las Vegas. 
The millions of tourists who visit Nevada cities every year are expected to make nearly two of every three purchases from retailers, who began selling pot early on Saturday morning.
Hundreds of people lined up at Essence Cannabis Dispensary on the Las Vegas Strip and cheered as the doors opened just after midnight. 
Dispensaries worked furiously to prepare for the launch, stamping labels on pot products, stocking up their shelves, adding security and checkout stations, and announcing specials. 
Desert Grown Farms hired about 60 additional employees. Workers in scrubs, hair nets …