Paris, the city of... underground mushrooms

The famous underground catacombs of Paris attract thousands of tourists each year, although only 200 can go in at a time.

However, the catacombs also provide an environment which lends itself to raising Champignons de Paris aka button/Portobello mushrooms.

Champignons de Paris: the famous mushroom and their city farmers - France Today
http://www.francetoday.com/articles/2015/03/16/champignons_de_paris.html

Video: French chefs champion the return of traditional mushroom farming - AP
https://www.youtube.com/watch?v=AGEqzac0saM


Angel Moioli of Champignonnière Les Carrières growing mushrooms