 There are many historic mansions in the seaside city of Newport, including The Breakers, Marble House, and Belcourt Castle.Also located there is the Touro Synagogue, dedicated on December 2, 1763, considered by locals to be the first synagogue within the United States (see below for information on New York City's claim), and still serving.The synagogue showcases the religious freedoms that were established by Roger Williams, as well as impressive architecture in a mix of the classic colonial and Sephardic style.