Time for the solution to photo Number 3 and to give you Where is This photo Number 4!
First, the solution to Number 3:-
Its Bootham Tower the rectangular tower and postern on the opposite side of the road from Bootham Bar in Exhibition Square. The tower was built in 1497 as a rear entrance to the Abbot’s House, which became the King’s Manor, a royal palace and the seat from 1540 to 1641 of the Council of the North. The tower is constructed of brick behind a stone facing. The three-story tower has a gabled roof now, but the windows in the South East and North West walls may once have been crenelations on a flat-topped tower.
In summer months the tower is used as a booking office and information point for York City Sightseeing open-top bus tours.
So now for Mystery Picture Number 4 :-
Again a location passed by thousands of people every day – but more wheels than feet ! Can you identify where it is ?