 Complete the following phrase:  Albemarle was recognized by the National Trust for Historic Preservation as a National Main Street City in 1993. There are a number of historic preservation and adaptive reuse projects in its downtown that have been recently completed or are underway, including an initiative to create a greenway linking many of the Citys parks and historic sites. The Freeman-Marks House, probably built during the 1820s, is the oldest known surviving house in Albemarle. It is listed in the National Register of Historic Places, along with the Romanesque Revival Opera HouseStarnes Jewelers Building 1908 and three small historic districts in the citys downtown area. Another important historic property is the Isaiah W. Buck Snuggs House, an antebellum home on Third Street then owned and now named for a Stanly County sheriff who lost his leg in the Civil War 