Travelers are voting Great Synagogue of Florence as the best synagogue in Grosseto. There are 1 synagogue in Siena a city just 39 km from Grosseto and 1 synagogue in Viterbo which is 55 km distant. The most popular of these are Great Synagogue of Florence in Siena and Great Synagogue of Rome in Viterbo. You can find 1 synagogue in Tuscany and 5 synagogues in the country of Italy. Our members favorite in Tuscany is Great Synagogue of Florence and Great Synagogue of Rome is the top pick in Italy. Want more? Check out our map of synagogues in Grosseto.