In a vast open-air greenhouse thousands of sweet-smelling marijuana plants are being grown for doctors rather than dealers.
This immense plantation in the lush green mountains above the Colombian city of Medellin is the heart of the world's foremost fully-licensed medicinal cannabis farm.
Here at PharmaCielo, leading scientists and horticulturists are working together to convert the plants' sticky flowers into an oil which can help people with a wide range of serious health problems.
As a British company this week announced plans for the UK's first legal cannabis firm in Wiltshire, the Mirror was given an exclusive tour of PharmaCielo's premises.