The Bellevue Avenue Historic District is located along and around Bellevue Avenue in Newport, Rhode Island, United States. Its property is almost exclusively residential, including many of the Gilded Age mansions built as summer retreats around the turn of the 20th century by the extremely wealthy, including the Vanderbilt and Astor families. Many of the hom…The Bellevue Avenue Historic District is located along and around Bellevue Avenue in Newport, Rhode Island, United States. Its property is almost exclusively residential, including many of the Gilded Age mansions built as summer retreats around the turn of the 20th century by the extremely wealthy, including the Vanderbilt and Astor families. Many of the homes represent pioneering work in the architectural styles of the time by major American architects.