A former air raid shelter from World War II is being used for farming 100 feet underground.
The project called Growing Underground, which is supported by TV chef Michel Roux Jr, is spread across 2.5 acres under the London Underground where the plants are grown under LED lights using hydroponics, which provides nutrients in water, Fox news reported.
The website of the company explains that it has "zero effect on the environment" and it uses 70 percent less water than a typical farm.
The company notes that it doesn't use pesticides as there are "no pests living this far underground".