Burgers Zoo in Arnheim, Holland has created one of the only self sustaining series of man made ecologies on the planet. No fertilisers or insecticides are used in this 'Green' environment.

The Mangrove Hall at Burger's Zoo is also one of the oldest commercially constructed ETFE structures, in the world. Since it was built in 1982, the facility has surpassed performance expectations and the material itself has shown no visible signs of deterioration.