SMITHSONIAN INSTITUTION, PATENT OFFICE BUILDING BY ERIC OWEN MOSS ARCHITECTS
via 216.70.65.123
“using the glass rods not just for their formal properties, but as structural components. The result is A Surface of Points, a system of deep cable trusses that incorporate glass tubes as compression members.”
“The system involves a base of steel truss frames within a boxlike enclosure. Steel cables are hung between the truss frames, approximating the surface plane of the ceiling. The cylinders, formed from ½-inch-thick laminated glass, are installed and threaded on the cables, forming the compression members of the deep cable trusses.”

“The tubes also have acoustical properties, which can be adapted by varying the length of the tubes in accordance with the natural acoustics of the room. Sound travels and diffuses in the spaces between and within the tubes, or can be reflected by the use of a plug in the bottom of the tube.”

This last image isn’t from the same project, but has the same feature.

NOTE: I wonder how those diagonal structural supports work. It reminds me a bit of the Memorial Cloud entry from the WTC.
MORE INFO & PICTURES:
http://www.ericowenmoss.com/index.php?/projects/project/smithsonian_institution_patent_office_building/
http://www.architectmagazine.com/design/a-surface-of-points.aspx
http://www.designboom.com/weblog/cat/9/view/6342/eric-owen-moss-architects-warner-parking-and-retail.html