Sculptor with a good eye for art

Ever had the strange feeling that you're being watched? It's not exactly a hidden eye.

Visitors in Chicago pass a 30ft-high eyeball sculpture by Tony Tasset that has been unveiled at Pritzker Park. Tasset has previously worked on a smaller version of the sculpture, which was only 12ft high.

He worked with half a dozen fibreglass specialists to complete the project – which he named simply Eye.

The piece will be on display in the park until the end of October.