The Queen is welcomed to York by the city's civic leaders at Micklegate Bar - the official entrance to the city.
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The Leeds boxer will find out tonight if she has won the coveted Sunday Times Sportswoman of the Year award.
The walls had been closed to the public at the weekend amid fears of a collapse.
The artwork will act as a sundial, highlighting up to 24 key dates that have shaped the history of Hull and the world.