The hexagonal clock tower at Salisbury Dock stands between two disused locks that formerly gave access between the Leeds and Liverpool Canal and the Mersey estuary beyond.
Known locally as the Victoria Tower it is made of granite and has six sides, each of them bearing a clock face.
The famed architectural critic Sir Nickolaus Pevsner responded to the tower by claiming: "It is all ham, but it tells of the commercial pride of the decades."