Caltech Wallpapers
Throop Hall
Caltech
Beckman Auditorium
Sherman Fairchild Library
Walter and Leonore Annenberg Center
Beckman Institute, California Institute of Technology
Caltech University
Warren and Katharine Schlinger Laboratory
Kerckhoff Laboratories
Jorgensen Laboratory
Red Door Marketplace
Cahill Center
Throop Memorial Garden
Powell-Booth Laboratory
Caltech Hameetman Center
Wright Laboratory
Keith Spalding Building
Kerckhoff Laboratories
Graduate Aerospace Labs
Beckman Auditorium
California Institute of Technology
Division Office of GPS
Parsons-Gates Hall
Parsons-Gates Hall of Administration
Linde Hall
Great Egret
Braun Athletic Institute Building
Caltech Seismological Laboratory
Charles Arms Laboratory, Spanish Revival
Gates Annex Library
Cassie Robot
Annenberg Center















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Found a Caltech wallpaper you love? Download it above, then follow the steps for your device to make it your background.
Windows
- Click Download to save the image to your PC
- Right-click the saved file and choose “Set as desktop background”
- Your new background shows up right away — no restart needed
macOS
- Click Download to save the image to your Mac
- Open System Settings and go to Wallpaper
- Click “Add Photo,” then choose the image you just saved
iPhone / iPad
- Tap Download, then Save to Photos
- Open the Photos app and select the image
- Tap the Share icon, then “Use as Wallpaper”
Android
- Tap Download to save the image to your phone
- Open your Gallery or Photos app and select it
- Tap the menu, then “Set as wallpaper”