Conway is a city in Horry County, South Carolina. Numerous buildings and structures located in Conway are on the National Register of Historic Places. Among these is the City Hall building, designed by Robert Mills, architect of the Washington Monument. Since the completion of the Main Street USA project in the 1980s, Conway's downtown has been revitalized with shops and bistros. Highlighting the renovation of the downtown area is the Riverwalk, an area of fine dining which follows a stretch of the Waccamaw River that winds through Conway. The Waccamaw River Blue Trail extends the South Carolina portion of the Waccamaw River meandering 100 miles through protected bottomland hardwood swamps of the Waccamaw National Wildlife Refuge and passing through the historic, riverfront cities of Conway and Georgetown. The Waccamaw, a coastal black water river, is home to many rare species of plants and animals, some of which are found nowhere else on earth.