![](http://2.bp.blogspot.com/_nbq2z7LV5VM/SMFiAHJmUpI/AAAAAAAAAX4/KHxeTbsrrp8/s320/F-London+Millennium+Dome.jpg)
Dear Anna,
This tensile structure is the largest of its type in the
world. The canopy is made of a durable and
weather-resistant plastic, and is 50 m high in the middle.
During the political controversy surrounding the dome
back in the 90's, Wonderbra ran an advertising campaign
with the slogan 'Not all domes lack public support'.
Cheers.
R