The IRSA Cutouts Service is a companion service to Atlas; where Atlas returns entire images, Cutouts creates subimages from the original files, at locations and sizes requested by the user. Results can be downloaded individually, in batch mode (with wget), or as a tar file.
Detailed instructions on using the Cutouts service can be found here.
Spitzer Heritage Archive Enhanced Imaging Products
Spitzer Legacy Programs - Galactic Data Sets
Spitzer Legacy Programs - Extragalactic Data Sets
Spitzer - First Look Survey
Spitzer - Frontier Fields
Spitzer - Contributed Data Sets
Cosmic Evolution Survey with HST (COSMOS)
Infrared Astronomical Satellite (IRAS)
The Two Micron All Sky Survey (2MASS)
The Infrared Telescope in Space (IRTS)
The Midcourse Space Experiment (MSX)
Contributed Data Sets