Wall of colorful test tubes in the Heinz History Center, Pittsburgh, USA
Size: 6000px × 4000px
Photo credit: © Nick Higham / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: america, blue, cap, capped, center, centre, color, colors, colour, colourful, colours, exhibit, glass, green, heinz, history, museum, orange, pennsylvania, pittsburgh, red, science, smithsonian, specimen, states, test, tube, tubes, united, usa, yellow