1. Lincoln Castle
What is it? A double motte Norman castle with layer-upon-layer of history.
Why go? Built by William the Conqueror, on a spot favoured by the Romans, Lincoln Castle has seen untold drama and bloodshed in its thousand-year history. Now restored to its former glory, you can visit to find out more about its past and the people that called it home. The jewel in the city’s crown, most big events also happen in and around the castle’s ancient structure.