Using technology provided by Google, the website allows the visitor to access maps, timelines and a large amount of historical information. The project is available at the website of the Network of Spanish Jewish Quarters. According to organizers, the technology supplied by Google enables the organization of "523 sites, 910 chronological entries, 1.667 images, 67 informative texts and 138 comments in lexical voices.... spanning from the 3rd century till today." I've only browsed a few of the entries but have discovered much new (to me anyway) material. Here, for example, is the section of
Some of this same type of information for other countries has been available for many years at other sites, notably the in-depth information about Jewish sites in Holland provided by the Jewish Historical Museum in Amsterdam, which also uses Google maps but remains fairly hidden deep in the museum's website. In other countries (England, the Czech Republic) researchers have compiled comparable information, but this is available in complete from only in published books.