1. Norwich Cathedral
What is it? A Grade I listed building which opened in 1145.
Why go? It opened nearly 900 years ago, but the majesty of Norwich’s Cathedral is still drawing visitors to the city today. Designed by architect John de Ramsey, the building’s Gothic exterior holds a whole load of treasures, from the largest collection of roof bosses (decorative details on the ceiling) in the Christian world – there’s more than 1000 – and a library full of historic books to its 44 acre close alongside the River Wensum.