CHESTER CASTLE: AGRICOLA TOWER AND CASTLE WALLS.
4.3
★★★★☆
The Details: Chester Castle is one of the city's less-visited but genuinely interesting historic sites, with the Agricola Tower and the surviving castle walls offering a different layer of Chester's long story. The tower has a medieval chapel inside, and the walls give a sense of the castle's original scale. It sits alongside the courts and the military museum, making the whole complex worth a slow explore.