Sir Antony Gormley: Can sculpture persuade us to cherish the earth and arts?

Sir Antony Gormley is well known for his iron men who can be found around the country, from Merseyside to Margate.

Now one hundred of his life-size figures have taken up residence in the house and gardens of Houghton Hall in Norfolk.

Dotted across 300 acres – some buried, others standing on plinths – his Time Horizon installation encourages visitors to roam far and wide.

We went to speak to the man behind them.