Flanked by bustling cafes in downtown Recife on Brazil's northeastern coast is a little-known treasure of Jewish history in the New World - the oldest synagogue in the Americas.Sephardic Jews built the two-story Kahal Zur Israel Synagogue before 1641 - most likely in 1636 - when they enjoyed religious freedom under the Dutch, who ruled part of the northeast region from 1630 to 1654 to control sugar production.