twb[23] - leading lights {4 of 4}

A word of explanation. The term "Leading Lights" refers to a navigational aid for entering a channel or harbour; these are a pair of marks that, when aligned vertically mean that you are lined up with the safe route.

In the case of the River Tyne, a general description of these are a pair of white painted towers, the bottom one on the lower quays and the other up on the headland above.

This image has the "New Low Light" which was built on the North Shields Fish Quay - as a "light" the lantern was in use from 1810 to 1999, but the building is still used as a "day mark".
Next to it is the "Old Low Light" which dates from 1727 to 1810, and has been restored, partly as a museum and community facility, which opened in 2014.
Further behind the "New High Light" can be seen - the white tower ...
I don't think you can see the "Old High Light" from this location, it's obscured by later buildings.

en.wikipedia.org/wiki/High_and_Low_Lights_of_North_Shields#New_High_and_Low_Lights