View of a crane operator. Crane is used to hoist and remove materials to construction workers working on top of a newly constructed building at the California Institute of Technology, in Pasadena.
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.