Canstruction is an annual design and build competition, held in over 140 cities worldwide, in which displays are built entirely out of non-perishable food items by architectural, engineering, and construction firms. The giant art exhibits are then displayed for public viewing and judged on creativity and the quantity and quality of the food items included in the structure. After the event, the structures are dismantled, and the food items are donated to local food banks for distribution to community emergency feeding programs.