Sandi Toksvig goes roaming with Alan Davies, Sara Pascoe, Josh Widdicombe and Benjamin Zephaniah.
Join Joan Bakewell and Stephen Mangan for another heat, with the celebrities sitters this time including actor Jim Carter, poet and writer Benjamin Zephaniah, and Gold Medallist Paralympian and `Strictly Come Dancing' star Ellie Simmonds.
Artists and local communities join forces in the Midlands heat as they take up the challenge to get the chance to create the UK's next major landmark.
The ground-breaking performance poet Benjamin Zephaniah gets candid with Melvyn Bragg as he discusses his life and performs a selection of his most personal poems.