Old St Paul's brought to life in new computer animation

Researchers at an American university have created a computer animation depicting the Old St Paul's Cathedral.

North Carolina State University recreated Wren's masterpiece, thought to have been originally 150 metres tall. It would have been the tallest structure ever built in the city until the mid-20th century.

The Virtual Cross Project aims to transport viewers back to 1622, when John Donne gave an important sermon from Paul's Cross, before the Great Fire of 1666.