The architectural project is the museum’s largest in more than 100 years and created new public space for exhibits and installations.
The Duchess of Cambridge, who studied art history at the University of St. Andrews, stepped out in a smart gray dress with red and black detailing, greeting museum employees and eager locals, including a young girl who offered her a bouquet of flowers.
She walked around the Sackler Courtyard, the first porcelain-tiled courtyard in the world, and visited the very open new Sainsbury Gallery, viewing the impressive architecture.
To honor the occasion, the 35-year-old royal unveiled a plaque in the Sackler Courtyard, commemorating the Exhibition Road Quarter’s opening.
According to BBC, Kate and William’s two children, Prince George and Princess Charlotte, will join the family for the touching event.
For more from the royals, watch the clip below.