A few nice image sites images I found:
Chapultepec Castle, Mexico City
Image by Cornell University Library
Collection: A. D. White Architectural Photographs, Cornell University Library
Accession Number: 15/5/3090.00606
Title: Chapultepec Castle, Mexico City
Photographer: Abel Briquet (French, 1854-1896)
Photograph date: ca. 1865-ca. 1892
Location: North and Central America: Mexico; Mexico City
Materials: albumen print
Image: 7 1/2 x 9 3/4 in.; 19.05 x 24.765 cm
Provenance: Gift of Andrew Dickson White
Persistent URI: http://hdl.handle.net/1813.001/5sr0
There are no known U.S. copyright restrictions on this image. The digital file is owned by the Cornell University Library which is making it freely available with the request that, when possible, the Library be credited as its source.
We had some help with the geocoding from Web Services by Yahoo!