Share this page About GCMA History Board Commission About GCMA THE GCMA IS TEMPORARILY CLOSED FOR CONSTRUCTION. Welcome to the Greenville County Museum of Art. Considered the premier American art museum in the South, the GCMA is home to the world’s largest public collection of watercolors by iconic American artist Andrew Wyeth. The GCMA also has an impressive collection of paintings and prints by contemporary artist Jasper Johns, the largest institutional collection of pottery by enslaved artisan David Drake, and the largest collection outside the Smithsonian of works by South Carolina-born artist William H. Johnson. Ranging from Federal portraits to contemporary abstractions, the GCMA’s acclaimed Southern Collection invites viewers to survey American art history through works with ties to the South.