A Sound Garden is a huge musical instrument and art installation created by Douglas R. Hollis, on the National Oceanic and Atmospheric Administration Western Service Center campus.

Located on a hill overlooking Lake Washington in Seattle, the giant pipe-like structures murmur, whistle, and howl when the wind blows through them. The Seattle band Soundgarden famously named themselves after the Hollis piece.

Other art installations on the NOAA campus include works by such artists as Scott Burton, Martin Puryear, and Siah Armajani.

Update: The NOAA Campus is no longer open to civilian personnel.