A 58,857-square-foot museum of modern and contemporary Catalan art in Barcelona's 22@ district, a former industrial zone that the city has redeveloped into a service and tech corridor.

A 129,791-square-foot addition to the Crocker Art Museum, featuring exhibition galleries, a 260-seat auditorium, a double-height reception hall, offices, a store, and a café.

A 161,459-square-foot, three-level museum on the Amstel, housed in a former nursing home from the 17th century.

Joshua Prince-Ramus discusses the challenges and opportunities of working abroad. Fred Bernstein: Did you work with a local architect? What do you look for in a local architect? Joshua Prince-Ramus: Due to the incredibly compressed schedule, we collaborated with a general contractor, moving directly from design development to shop drawings. The contractor would send drawings at the end of their day in Turkey; we would develop them and send them back for the start of their next day — it was almost a 24-hour cycle. On nearly all our other projects, we have collaborated with local firms. We seek true

Sometimes, form follows fortuity. In the 1990s, Rem Koolhaas developed an idea for a private house near Rotterdam; when that project was shelved, he adapted the concept to a much larger building — a concert hall in Porto, Portugal.

The K20 Art Collection in Düsseldorf is home of one of Germany’s most important contemporary art collections. When the State Chancellery of North Rhine-Westphalia decided to update and expand its original 1986 home two years ago, the administrators tapped the architects of the existing museum, the late Arne Jacobsen’s Copenhagen-based Dissing+Weitling. As they had to shutter the facility to execute the renovation and 21,528-square-foot addition, they also called upon the Bonn-based lighting design firm Licht Kunst Licht to overhaul the dated lighting system. With numerous museums in their portfolio, Licht Kunst Licht principal Andreas Schulz and lighting designer Alexander Rotsch

After more than 20 years at Vidal Sassoon, styling hair and managing operations in London and North America, Peter Bradley teamed with Sassoon colleague Dirk Diegel to launch an upscale establishment in Boston, where the German-born Diegel had been based for 14 years. Dubbed “a salon that transcends trends and celebrates individual beauty,” the pair’s two-year-old eponymous business makes its home on the second floor of a typical row house in the city’s tony Back Bay neighborhood. The spare yet comfortable space, designed by Studio Luz Architects, not only communicates the owners’ mission; it provides a well-lighted, functional arena for

The Digital Images and Slide Collection at Harvard College’s Fine Arts Library in Cambridge, Massachusetts, houses more than 750,000 images in 35-millimeter-slide and digital formats.

A 119,165-square-foot, five-story complex that includes classrooms, labs, faculty offices, departmental suites, and radio and television broadcasting facilities.