An emphasis on program distinguishes this year’s pavilion from many of its predecessors.

With the completion of four new rooms including a library and a camera obscura housed in what was once a janitorial closet, the facility at the Victoria and Albert Museum is the largest of its kind in the UK.

Triumphing over shortlisted proposals from firms including SANAA, Herzog & de Meuron, and Adjaye Associates, the Chipperfield revamp extends the existing museum to the street and incorporates a rooftop park.