Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge, were in the city to view the under-construction Northern Spire Bridge.
They also visited the Fire Station, the iconic building which had recently converted into a music and arts hub.
See if you can spot someone you know in these wonderful scenes from Getty Images.
In case you missed it;
1. Lovely to meet you
Catherine, Duchess of Cambridge greets members of the crowd as she visits The Fire Station in 2018. (Photo by Chris Jackson/Getty Images) | Getty Images
2. A great day in Sunderland
Prince William, Duke of Cambridge speaks with people in the crowd in February 2018. Tell us if you were among them. (Photo by Chris Jackson/Getty Images) | Getty Images
3. Sharing a joke
Prince William shares a joke with the crowds outside the Fire Station eight years ago. (Photo by Chris Jackson/Getty Images) | Getty Images
4. A big day on the bridge
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit the Northern Spire, before its opening in spring 2018. (Photo by Danny Lawson-WPA Pool/Getty Images) | Getty Images