Travel From ancient trees to towering volcanoes, take in scientific wonders at national parks August 15, 2020August 16, 2020Larry Bleiberg, Special to USA TODAYComments Off on From ancient trees to towering volcanoes, take in scientific wonders at national parks Interest in national parks is booming, with crowd-wary Americans drawn to wide open spaces and natural beauty. But they're also great places to learn.