- Nelson's Column and base (1843): built of Foggintor Granite
of Permian age from Dartmoor; Nelson's statue (Bailey,
1842), carved of Craigleith Sandstone from near Edinburgh.
- The bollards, walls and statue plinths in the Square are
of grey Aberdeen Granite.
- Inlaid strips of Cornish Granite with big feldspar crystals
occur throughout the Square.
- Charing Cross Underground Station (Bakerloo Line). Much
of the London Underground passes through London Clay.
- 'Chequerboard' pavings of red Mansfield Sandstone, of Permian
age, and white Portland Stone. Portland Stone is a hardy
white limestone of Jurassic age.
- Sandstone pavings from quarries near Edinburgh.
Learn more about Trafalgar Square's
building stones in the Holiday Geology Guide available from the BGS Bookshop