Set high up among wooded hills 28 miles south of Pittsburgh, the Washington / Pittsburgh SW KOA makes a fine stopover for both local and big-city attractions. Volleyball, horseshoes and a good-size pool keep campers smiling. Wind along the countryside's rural highways, which snake over 23 covered bridges and lead to antique stores and flea markets. Visit a state treasure-Fallingwater, a house designed by Frank Lloyd Wright. Learn about 19th-century life at Meadowcroft Museum of Rural Life. And enjoy a game of chance at the new slots casino 5 miles from the campground.