With the help of Perkins Eastman, the Tenement Museum in New York has expanded into a separate, five-story building.

A new museum of contemporary African art heightens the sculptural power of the 1920s industrial complex in which it is housed.

An existing building is transformed into elegant homes for two academic departments.

A small but muscular addition creates a campus gateway and, along with the renovation of a neighboring building, reunites the arts.

In Zurich, the conversion of a 170-year-old single-family house and adjacent workshops into apartments is a study in contrasts.

A start-up expands its Montreal headquarters inside a castle-like building.

A building’s industrial past fuses with a commercial addition for an innovative business in Beijing.

A progressive 19th-century psychiatric hospital is reimagined as an elegant urban resort in Buffalo, New York.

Auburn University’s Rural Studio transforms an aging bank building in Newbern, Alabama, into the town’s first public library.

A once-popular Masonic temple, adorned with symbols, transforms into a private museum in Los Angeles.