Photos: An in-progress look at the Broad Museum

The Broad Museum at 2nd Street and Grand Avenue on Bunker Hill in Los Angeles is nearing completion.   (Luis Sinco / Los Angeles Times)

Workers clean the glass windows of the third floor gallery of the Broad Museum in Los Angeles. The building will open in September.   (Luis Sinco / Los Angeles Times)

A view of the Walt Disney Concert Hall through the windows of the Broad Museum in downtown Los Angeles.   (Luis Sinco / Los Angeles Times)

A clear, cylindrical elevator shaft rises from the center of the third floor gallery of the Broad Museum. The $140 million building will feature two floors of gallery space to showcase the Broad’s comprehensive collections.  (Luis Sinco / Los Angeles Times)

Construction continues at the Broad Museum in Los Angeles.  (Luis Sinco / Los Angeles Times)

The Broad Museum on Bunker Hill in Los Angeles.  (Luis Sinco / Los Angeles Times)

Construction continues at the Broad Museum in Los Angeles.   (Luis Sinco / Los Angeles Times)

Construction continues at the Broad Museum in Los Angeles.   (Luis Sinco / Los Angeles Times)

The Broad Museum in Los Angeles.  (Luis Sinco / Los Angeles Times)

Exterior of the Broad Museum in Los Angeles.   (Luis Sinco / Los Angeles Times)

The Broad Museum in Los Angeles.  (Luis Sinco / Los Angeles Times)