We saw this cool glass sculpture in the Victoria and Albert Museum. It is 8.1m high, and weighs 1724kg. It was made by Dale Chihuly and his team in 2001 in Seattle. How do I know? I also took a photo of the informational plaque.
Sculpture by Dale Chihuly
It is hanging directly above the main information desk. I think I would be scared to work there, for fear of being crushed/impaled if the thing ever broke free.